#Java Multithreading Interview Questions & Answers

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Java Interview Questions and Answers: Your Ultimate Preparation Guide

That’s why we’ve created "Java Interview Questions and Answers: Your Ultimate Preparation Guide" to help you get fully prepared and stand out from the competition.

Java remains one of the most widely used programming languages across the tech industry. From building enterprise-grade applications to Android development and cloud-based systems, Java is a powerful, object-oriented language that has stood the test of time. As a result, Java continues to be a core requirement in thousands of job listings globally, and technical interviews often focus heavily on Java fundamentals, coding practices, and real-world problem-solving.

This guide offers a comprehensive breakdown of the most commonly asked Java interview questions, along with expert-level answers that explain not just the what, but the why—helping you build a strong conceptual foundation.

Why This Guide Matters

"Java Interview Questions and Answers: Your Ultimate Preparation Guide" is designed to equip you with the most relevant, up-to-date, and frequently asked questions across various job roles and experience levels. Whether you're a fresher just entering the field or a seasoned Java developer with years of experience, the questions included in this guide cover all the core areas expected in a Java interview.

With structured answers, real-world examples, and technical explanations, this guide helps you understand each topic in depth—so you’re not just memorizing, but truly learning.

Key Topics Covered in This Guide

Here are the primary categories of Java interview questions and answers covered in this ultimate preparation guide:

1. Core Java Basics

These questions test your fundamental knowledge of Java, including syntax, control structures, and data types. Examples include:

What are the main features of Java?

What is the difference between JDK, JRE, and JVM?

Explain the concept of platform independence in Java.

2. Object-Oriented Programming (OOP) in Java

As Java is built around the OOP paradigm, interviewers often assess your grasp of these principles:

What is encapsulation, and why is it important?

Explain inheritance with examples.

What is polymorphism, and how is it implemented in Java?

3. Exception Handling

Proper exception handling is critical in robust Java applications. Common questions include:

What is the difference between checked and unchecked exceptions?

How do try, catch, finally, and throw work together?

What is the purpose of custom exceptions?

4. Collections Framework

This is a favorite topic in Java interviews due to its practical importance:

What is the difference between ArrayList and LinkedList?

How does HashMap work internally?

What are the differences between Set, List, and Map?

5. Multithreading and Concurrency

Java supports concurrent programming, and questions in this category test your knowledge of threading concepts:

What is a thread in Java?

Explain the differences between Runnable and Thread.

How do you avoid thread-safety issues in Java applications?

6. Java 8 and Beyond

Modern Java versions introduced features like lambdas, streams, and functional programming:

What are lambda expressions?

How do you use the Stream API in Java 8?

What is the difference between Optional and null?

7. JVM Internals and Memory Management

Senior-level candidates are often expected to understand how Java works under the hood:

How does garbage collection work in Java?

What are the different memory areas in JVM?

How can memory leaks be detected and avoided?

8. Design Patterns and Best Practices

To demonstrate architectural thinking, candidates may be asked:

What is the Singleton pattern and how do you implement it?

Explain the Factory and Observer patterns.

What are SOLID principles in Java programming?

Sample Questions from the Guide

Here are a few samples from "Java Interview Questions and Answers: Your Ultimate Preparation Guide":

1: What is the difference between ‘==’ and .equals() in Java? Ans: == checks reference equality, meaning whether two references point to the same object. .equals() checks logical equality, meaning whether two objects have the same value. For example, two different String objects with the same value will return true using .equals() but false using ==.

2: What is a HashMap, and how does it work internally? Ans: A HashMap stores key-value pairs. It uses a hash function to compute an index where the value should be stored in an array. If multiple keys hash to the same index, Java handles collisions using a linked list or a balanced tree (as of Java 8).

3: How does Java achieve platform independence? Ans: Java code is compiled into bytecode by the Java compiler. This bytecode is platform-independent and can be executed by the Java Virtual Machine (JVM), which is available on multiple operating systems.

How to Use This Guide for Effective Interview Prep

To get the most out of "Java Interview Questions and Answers: Your Ultimate Preparation Guide", follow these steps:

Study the concepts – Don’t just read the answers; understand the reasoning behind them.

Practice coding – Use platforms like HackerRank, LeetCode, or Codeforces to apply Java in real coding problems.

Mock interviews – Simulate real interview scenarios with peers or mentors to practice verbalizing your thoughts.

Build small projects – Implement real-world solutions to solidify your understanding of Java concepts.

Keep learning – Stay up-to-date with Java updates and community discussions to stay ahead of the curve.

Conclusion

Preparation is key to succeeding in a Java interview, and "Java Interview Questions and Answers: Your Ultimate Preparation Guide" is your all-in-one resource for that journey. By mastering the topics covered in this guide, you'll gain the confidence and knowledge needed to impress your interviewers and secure your desired role in the tech industry.

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Top Java Interview Questions and Answers You Must Know in 2025

Preparing for a Java developer role? Whether you're a fresher or an experienced candidate, being well-versed with common Java interview questions can significantly boost your confidence and chances of landing the job.

In this blog, we’ll cover the most frequently asked Java interview questions along with quick answers and explanations.

📘 Looking for a complete, detailed list of Java interview questions? 👉 Check out the full guide here: Java Interview Questions – Freshy Blog

🔹 Why Java?

Before jumping into questions, let’s quickly recall why Java is such a sought-after language:

Platform independent

Strong community support

Object-oriented

Robust memory management

Used in web, mobile, and enterprise apps

🔸 Basic Java Interview Questions

What is Java? Java is a high-level, object-oriented programming language known for its platform independence via the Java Virtual Machine (JVM).

What are the main features of Java?

Object-Oriented

Secure

Portable

Robust

Multithreaded

What is the difference between JDK, JRE, and JVM?

JDK: Development kit for Java

JRE: Environment to run Java applications

JVM: Java Virtual Machine that executes code

🔸 OOPs & Core Concepts Questions

What is inheritance in Java? Inheritance allows one class to acquire properties and methods of another class using extends.

What is the difference between method overloading and overriding?

Overloading: Same method name with different parameters in the same class

Overriding: Same method signature in child and parent class

🔸 Advanced Java Interview Questions

What is a Java ClassLoader? A part of JVM that loads classes during runtime.

What is the difference between HashMap and Hashtable?

HashMap: Non-synchronized, allows one null key

Hashtable: Thread-safe, doesn’t allow null keys/values

Explain exception handling in Java. Using try-catch-finally blocks to gracefully handle run-time errors.

📚 Want More Questions with Answers?

These are just a few of the most asked Java questions. If you're preparing for interviews and want more in-depth explanations and examples:

🔗 Visit the full post here: 👉 https://www.freshyblog.com/java-interview-questions/

It includes:

Java 8 features

Multithreading questions

Collections framework

Spring Boot & JDBC-related questions

Real interview scenarios

✅ Final Tips for Java Interviews

Practice coding daily

Build sample projects

Revise OOPs and exception handling

Study frequently used Java libraries

[fromdevcom]

Java Mastery Challenge: Can You Crack These 10 Essential Coding Questions? Are you confident in your Java programming skills? Whether you're preparing for a technical interview or simply want to validate your expertise, these ten carefully curated Java questions will test your understanding of core concepts and common pitfalls. Let's dive into challenges that every serious Java developer should be able to tackle. 1. The Mysterious Output Consider this seemingly simple code snippet: javaCopypublic class StringTest public static void main(String[] args) String str1 = "Hello"; String str2 = "Hello"; String str3 = new String("Hello"); System.out.println(str1 == str2); System.out.println(str1 == str3); System.out.println(str1.equals(str3)); What's the output? This question tests your understanding of string pooling and object reference comparison in Java. The answer is true, false, true. The first comparison returns true because both str1 and str2 reference the same string literal from the string pool. The second comparison returns false because str3 creates a new object in heap memory. The third comparison returns true because equals() compares the actual string content. 2. Threading Troubles Here's a classic multithreading puzzle: javaCopypublic class Counter private int count = 0; public void increment() count++; public int getCount() return count; If multiple threads access this Counter class simultaneously, what potential issues might arise? This scenario highlights the importance of thread safety in Java applications. Without proper synchronization, the increment operation isn't atomic, potentially leading to race conditions. The solution involves either using synchronized methods, volatile variables, or atomic classes like AtomicInteger. 3. Collection Conundrum javaCopyList list = new ArrayList(); list.add("Java"); list.add("Python"); list.add("JavaScript"); for(String language : list) if(language.startsWith("J")) list.remove(language); What happens when you run this code? This question tests your knowledge of concurrent modification exceptions and proper collection iteration. The code will throw a ConcurrentModificationException because you're modifying the collection while iterating over it. Instead, you should use an Iterator or collect items to remove in a separate list. 4. Inheritance Insight javaCopyclass Parent public void display() System.out.println("Parent"); class Child extends Parent public void display() System.out.println("Child"); public class Main public static void main(String[] args) Parent p = new Child(); p.display(); What's the output? This tests your understanding of method overriding and runtime polymorphism. The answer is "Child" because Java uses dynamic method dispatch to determine which method to call at runtime based on the actual object type, not the reference type. 5. Exception Excellence javaCopypublic class ExceptionTest public static void main(String[] args) try throw new RuntimeException(); catch (Exception e) throw new RuntimeException(); finally System.out.println("Finally"); What gets printed before the program terminates? This tests your knowledge of exception handling and the finally block. "Finally" will be printed because the finally block always executes, even when exceptions are thrown in both try and catch blocks. 6. Interface Implementation javaCopyinterface Printable default void print() System.out.println("Printable"); interface Showable default void print() System.out.println("Showable"); class Display implements Printable, Showable // What needs to be added here? What must be

added to the Display class to make it compile? This tests your understanding of the diamond problem in Java 8+ with default methods. The class must override the print() method to resolve the ambiguity between the two default implementations. 7. Generics Genius javaCopypublic class Box private T value; public void setValue(T value) this.value = value; public T getValue() return value; Which of these statements will compile? javaCopyBox intBox = new Box(); Box strBox = new Box(); Box doubleBox = new Box(); This tests your understanding of bounded type parameters in generics. Only intBox and doubleBox will compile because T is bounded to Number and its subclasses. String isn't a subclass of Number, so strBox won't compile. 8. Memory Management javaCopyclass Resource public void process() System.out.println("Processing"); protected void finalize() System.out.println("Finalizing"); What's wrong with relying on finalize() for resource cleanup? This tests your knowledge of Java's memory management and best practices. The finalize() method is deprecated and unreliable for resource cleanup. Instead, use try-with-resources or implement AutoCloseable interface for proper resource management. 9. Lambda Logic javaCopyList numbers = Arrays.asList(1, 2, 3, 4, 5); numbers.stream() .filter(n -> n % 2 == 0) .map(n -> n * 2) .forEach(System.out::println); What's the output? This tests your understanding of Java streams and lambda expressions. The code filters even numbers, doubles them, and prints them. The output will be 4 and 8. 10. Serialization Scenarios javaCopyclass User implements Serializable private String username; private transient String password; // Constructor and getters/setters What happens to the password field during serialization and deserialization? This tests your knowledge of Java serialization. The password field, marked as transient, will not be serialized. After deserialization, it will be initialized to its default value (null for String). Conclusion How many questions did you get right? These problems cover fundamental Java concepts that every developer should understand. They highlight important aspects of the language, from basic string handling to advanced topics like threading and serialization. Remember, knowing these concepts isn't just about passing interviews – it's about writing better, more efficient code. Keep practicing and exploring Java's rich features to become a more proficient developer. Whether you're a beginner or an experienced developer, regular practice with such questions helps reinforce your understanding and keeps you sharp. Consider creating your own variations of these problems to deepen your knowledge even further. What's your next step? Try implementing these concepts in your projects, or create more complex scenarios to challenge yourself. The journey to Java mastery is ongoing, and every challenge you tackle makes you a better programmer.

[freeonlinejavacourse]

Top 60 most asked Java interview questions: crack like hack

Top 60 most asked Java interview questions It gives this guide easy navigation through every possible concept which could assist you either as a beginner entering into the tech world or an experienced developer wanting to progress and learn technical questions in java. Although, we have blogs related to becoming java developer full guide ,  how to become graphic designer in 2025 and Java full stack developer course free : A complete guide check it out.

Core Java Concepts: A refresher course on OOP principles, collections, and exceptions. Advanced Topics: Understanding multithreading, design patterns, Java 8 features including lambda expressions and streams with Java code interview questions. Practical Scenarios: Real-world examples that make you shine during the technical discussions. Interview-Ready: Java code interview questions Solaractical examples and explanations to build unfaltering confidence.

What we have for you ? core java interview question with answers

💡 You will now be brimming with strength, ready to tackle not just the routine questions but also the toughest questions if any arise, impress the hiring managers, and, of course, get through the offer!

👉 So begin your journey to becoming the Java professional everyone wants to have on board.

What is Java? Certainly, Java is a high-level, class-based object-oriented programming language, with minimal implementation dependency. It operates on the principle of “write once, run anywhere.” That is, compiled Java code can be run on all those platforms that support Java without recompilation.”  

What are the unique features of Java? -Dynamic -High

Performance -Secure

Robust

Distributed

Multithreaded

Platform-independent

Object-oriented  

3.Difference between JDK, JRE, and JVM. -JDK: Java Development Kit:  It contains the Java Runtime Environment and an assortment of development tools used for Java application development. -JRE: Java Runtime Environment. This is a part of a computer and thus is not a tool given for Java. It provides the set of libraries and JVM needed to run Java applications. -JVM: Java Virtual Machine. An abstraction of a computer that allows a computer to execute Java programs by converting bytecode into machine-specific code.  

4,What do you understand by ClassLoader in Java? ClassLoader in Java is a component of the Java Runtime Environment that is responsible for dynamically loading Java classes into the Java Virtual Machine. A ClassLoader finds and loads the class files at runtime.

5.Explain Object-Oriented Programming (OOP)

OOP is the programming paradigm based on the idea of “objects,” containing both data and code to manipulate that data. Four key important principles:

Encapsulation -Inheritance

Polymorphism

Abstraction  

6.What is inheritance in Java?

Inheritance is the process of taking attributes and behaviors from one class to another, It is the mechanism through which a new class (subclass) inherits from an existing one (superclass). Inheritance supports code reusability and creates a relationship between classes, i.e., a superclass-subclass relationship. Top 60 most asked Java interview questions is one of important question  

7.Polymorphism in Java?

More simply, polymorphic methods work differently depending on the object invoking them. Thus, polymorphism is of two types: name polymorphism and method overriding.

Compile-time polymorphism (Method Overloading)

Runtime polymorphism (Method Overriding)

8. What is encapsulation in Java?

Certainly, Encapsulation wraps the data (variables) and the code (methods) together as a single unit. Also, Developers achieve this by making the variables private and providing public getter and setter methods. But restricts direct access to some of the object’s components, which can prevent an accident song of data.

9. What is abstraction in Java?

Abstraction refers to the preventing the viewing of the complex implementation details while showing only the essential features of an object. It can be implemented. through abstract classes and interfaces.

10. What is the difference between an abstract class and an interface?

An abstract class is the one with both abstract and concrete methods and can maintain state via instance variables. A class can inherit an abstract class. An interface only has abstract methods (until Java 8, which introduced default and static methods) and cannot maintain state. A class can implement multiple interfaces.

11. What is a constructor in Java?

A constructor is a special method. which is called when an object is created. It has the same name as the class and no return type. It can also be overloaded, meaning that one class can have multiple constructors that can accept different numbers of parameters.

12. What is the difference between method overloading Certainly, Method overloading introduces the same names to multiple methods in the same class. But Method overriding means that a subclass provides a specific implementation. for a method that was already defined in the superclass.

13. What is the ‘this’ keyword in Java?

Although, The ‘this’ keyword refers to the current instance of class. Also It is used to indicate access to class variables and methods, and it helps in distinguishing the class attributes and parameters with identical names. and Top 60 most asked Java interview questions is one of important question

14. What is the ‘super’ keyword in Java?

The ‘super’ keyword refers to the immediate parent class object and can be used to access superclass methods and constructors. 

15. A different comparison is the ‘== operator’ and the ‘equals()’ method in Java.

‘== operator’: Reference Comparison. It checks whether both references point to the same object or not.

‘equals()’ method: Compares for equality of the actual contents of the objects.

16. What is a static variable and a static method?

Static Variable: The variable that is shared across all instances of a class. It relates more to the class than to any instance of it.

Static Method: Refers to methods that belong to a class rather than the instance of an object. They do not require an instance of a class to be called.

17. What are Java Collections? Framework is a name given to the entire collection of classes and interfaces forming commonly reusable collection data structures such as lists, sets, queues, and Maps.

18. What is the difference between an ArrayList and a LinkedList in Java?

ArrayList: Certainly, Use dynamic arrays to store elements; it will provide fast random access but will be slow on insertions and deletions, especially in the middle.

LinkedList: Use doubly linked lists to store elements. It provides for faster insertions and deletions, but slower random access.

19. What is a Map in Java? Although, A map is an object that maps keys to values. It does not permit duplicate keys, and each key can map to at most one value worldwide.

20.What is the difference between HashMap and TreeMap in Java?

HashMap: Implements the Map interface using

21.What is the difference between HashSet and TreeSet?

HashSet: Uses a hash table for storage; does not maintain any order of elements.

TreeSet: Implements the NavigableSet interface and uses a red-black tree to maintain elements in sorted order.

22. Explain the differences between List and Set in Java.

List: It allows duplicate elements and maintains insertion order. Set:   Does not allow duplicate elements and does not guarantee any particular order.

23. Explain the differences between an array and an ArrayList.

Array: Fixed-size, which can store both primitives and objects. ArrayList:   Resizable, storing only objects.

24. What does the final keyword do in Java?

Final   Variable: Cannot change its value. Final   Method: This Cannot be overridden. Final   Class: Cannot be subclassed.

25. What is the difference between String, StringBuilder, and StringBuffer?

String:   Immutable, thread-safe. StringBuilder: Mutable, not synchronized, faster than StringBuffer. StringBuffer:   Mutable, thread-safe.

26. What is the purpose of the transient keyword in Java?

The transient keyword is used to indicate that a field should not be serialized.

27. What is a volatile keyword in Java?

It ensures all the changes to a variable are visible to all threads. Top 60 most asked Java interview questions is one of important question.

28. What are the differences between synchronized and lock in Java?

Synchronized:   Implicit locking mechanism. Lock: Offers more control and flexibility in locking. 

29. What is multithreading in Java? Multithreading allows concurrent execution of two or more threads for maximum utilization of CPU.

30. What are the states of a thread in Java?

New

Runnable

Blocked

Waiting

Timed Waiting

Terminated

31. What is the difference between wait(), notify(), and notifyAll()?

wait(): Pauses the thread and releases the lock.

notify(): Wakes up a single thread waiting on the object’s monitor.

notifyAll(): Wakes up all threads waiting on the object’s monitor.

32. What is garbage collection in Java? Garbage collection is the process of automatically reclaiming memory by removing unused objects.

33. What are the types of memory areas allocated by JVM?

Heap

Stack

Method Area

Program Counter Register

Native Method Stack

34. What are the differences between throw and throws?

throw: Used to explicitly throw an exception.

throws: Declares exceptions in the method signature.

35. What is the difference between checked and unchecked exceptions?

Checked Exceptions: Must be handled or declared in the method signature.

Unchecked Exceptions: Runtime exceptions that do not need to be explicitly handled.

36. What is an enum in Java?

Enums are special data types that define the list of constants.

37. What is reflection in Java?

Reflection is the ability to dynamically inspect and modify a class’s behavior during runtime.

38. What is the difference between shallow cloning and deep cloning?

Certainly, Shallow cloning, like cloning, copies the values of all fields without taking into account the objects referred to. But , Deep cloning is like for all fields, a brand new class instance is created at those places. Top 60 most asked Java interview questions is one of important question

39. What are the types of design patterns in Java?

Creational (e.g., Singleton, Factory) Structural (e.g., Adapter, Proxy) Behavioral (e.g., Observer, Strategy)

40. What is the Singleton design pattern?

A design pattern that restricts the instantiation of a class to just one object and provides a global point of access to it.

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[subb01]

Top Java Interview Questions You Should Know

Preparing for a Java interview can be daunting, especially when you're unsure of what to expect. Mastering common Java questions is crucial for making a lasting impression. This blog covers the top Java interview questions you should know and provides tips for answering them effectively. For a more interactive learning experience, check out this Java interview preparation video, which breaks down key concepts and interview strategies.

1. What is Java?

Answer: Java is a high-level, object-oriented programming language developed by Sun Microsystems (now owned by Oracle). It is designed to have as few implementation dependencies as possible, allowing developers to write code that runs on all platforms supporting Java without the need for recompilation.

Pro Tip: Mention the "write once, run anywhere" (WORA) principle during your interview to emphasize your understanding of Java’s cross-platform capabilities.

2. What is the Difference Between JDK, JRE, and JVM?

Answer:

JDK (Java Development Kit): Contains tools for developing Java applications, including the JRE and compilers.

JRE (Java Runtime Environment): A subset of JDK, containing libraries and components required to run Java applications.

JVM (Java Virtual Machine): The part of the JRE responsible for executing Java bytecode on different platforms.

Pro Tip: Explain how these components interact to demonstrate a deeper understanding of Java's execution process.

3. Explain OOP Principles in Java

Answer: Java is based on four main principles of Object-Oriented Programming (OOP):

Encapsulation: Bundling data and methods that operate on the data within one unit (class).

Inheritance: Creating a new class from an existing class to promote code reuse.

Polymorphism: The ability of a method or function to behave differently based on the object calling it.

Abstraction: Hiding complex implementation details and showing only the necessary features.

Pro Tip: Use a real-world example to illustrate these principles for better impact.

4. What are Constructors in Java?

Answer: Constructors are special methods used to initialize objects in Java. They have the same name as the class and do not have a return type. There are two types:

Default Constructor: Automatically created if no other constructors are defined.

Parameterized Constructor: Accepts arguments to initialize an object with specific values.

Pro Tip: Highlight the differences between constructors and regular methods, and explain constructor overloading.

5. What is the Difference Between == and .equals() in Java?

Answer:

==: Used to compare primitive data types or check if two object references point to the same memory location.

.equals(): Used to compare the content within objects. This method should be overridden for custom comparison logic in classes.

Pro Tip: Demonstrating this concept with code snippets can be a game-changer in your interview.

6. What are Java Collections?

Answer: The Java Collections Framework (JCF) provides a set of classes and interfaces to handle collections of objects. Commonly used collections include:

List (e.g., ArrayList, LinkedList)

Set (e.g., HashSet, TreeSet)

Map (e.g., HashMap, TreeMap)

Pro Tip: Be prepared to discuss the performance differences between various collections and when to use each.

7. What is Exception Handling in Java?

Answer: Exception handling in Java involves managing runtime errors to maintain normal program flow. The main keywords used are:

try: Block to wrap code that might throw an exception.

catch: Block to handle the exception.

finally: Block that always executes, used for cleanup code.

throw and throws: Used to manually throw an exception and indicate that a method may throw an exception, respectively.

Pro Tip: Discuss custom exceptions and when it is appropriate to create them for better code design.

8. What is Multithreading in Java?

Answer: Multithreading is a feature in Java that allows concurrent execution of two or more threads. It is useful for performing multiple tasks simultaneously within a program.

Pro Tip: Familiarize yourself with the Thread class and Runnable interface. Highlight synchronization and thread-safe practices to show advanced understanding.

9. What are Lambda Expressions in Java?

Answer: Introduced in Java 8, lambda expressions provide a concise way to implement functional interfaces. They enable writing cleaner, more readable code for single-method interfaces (e.g., using a lambda to sort a list).

Example:

java

Copy code

List<String> list = Arrays.asList("apple", "banana", "cherry");

list.sort((a, b) -> a.compareTo(b));

Pro Tip: Mention how lambda expressions contribute to functional programming in Java.

10. What is the Significance of the final Keyword?

Answer: The final keyword can be used with variables, methods, and classes to restrict their usage:

Variables: Makes the variable constant.

Methods: Prevents method overriding.

Classes: Prevents inheritance.

Pro Tip: Explain how using final can improve security and design integrity in your applications.

Conclusion

Reviewing these questions and understanding their answers can prepare you for technical interviews. For additional explanations and examples, check out this detailed Java interview preparation video.

[firstbitsolutions]

How do I prepare for a Java full stack developer interview?

Preparing for a Java Full Stack Developer interview requires a blend of technical knowledge, hands-on experience, and good problem-solving skills. Here's a guide to help you get interview-ready, along with the mock test practices we conduct at FirstBit Solutions.

1. Solidify Your Java Basics

Core Java Concepts: Ensure you are clear on Object-Oriented Programming (OOP) principles, exception handling, collections, multithreading, and Java 8 features like streams and lambda expressions.

Hands-on Practice: Coding problems around data structures, algorithms, and solving common interview questions will help you get comfortable with Java fundamentals.

2. Master Front-end Development

HTML, CSS, and JavaScript: Be proficient in creating responsive web pages. Know how to use JavaScript frameworks like React or Angular for building dynamic and interactive front-ends.

Frameworks & Tools: Be familiar with Bootstrap for styling, and JavaScript ES6+ features for improved code writing.

3. Deep Dive into Back-end Technologies

Spring Framework: Learn Spring Boot, Spring MVC, and how to build RESTful services. This is crucial as most full stack projects use Spring for back-end development.

Hibernate & JPA: Knowing how to work with databases and perform object-relational mapping (ORM) is essential.

Microservices: Understanding how to build and manage microservices architecture using Java is increasingly important.

4. Databases

SQL/NoSQL Databases: Have a good understanding of SQL databases like MySQL or PostgreSQL, as well as NoSQL databases like MongoDB.

Query Optimization: Be prepared to answer questions on query optimization and efficient data retrieval techniques.

5. Version Control & DevOps Basics

Git: Know how to manage code repositories using Git, push, pull requests, and merging code.

CI/CD Pipelines: Understand the basics of Jenkins, Docker, and Kubernetes to know how code moves from development to production.

6. Soft Skills & Problem-Solving

Team Collaboration: Be prepared to showcase how you work in teams, communicate effectively, and handle project management tools like Jira or Trello.

Problem-Solving: Practice live coding sessions and technical questions on platforms like LeetCode, Code Signal, or Hacker Rank to enhance your algorithm-solving skills.

Mock Test Practices at FirstBit Solutions

At FirstBit Solutions, we conduct regular mock tests and interview simulations to help you get real-time feedback. Here’s how our mock tests prepare you:

Technical Rounds: These cover Java basics, Spring, Hibernate, front-end development with JavaScript, and problem-solving. The focus is on building clean, efficient code.

Hands-on Projects: You'll be given small projects to showcase your ability to develop both front-end and back-end solutions.

HR Interview Practice: Our sessions prepare you to communicate clearly, articulate your strengths, and answer behavioural questions confidently.

Mock tests provide a well-rounded preparation, helping you understand your strengths and the areas where you need improvement. You’ll receive constructive feedback after each round to ensure you’re ready to face the interview with confidence.

Conclusion

Preparing for a Java Full Stack Developer interview involves mastering both front-end and back-end technologies, honing your problem-solving skills, and participating in mock tests to simulate real interview conditions. At FirstBit Solutions, we support you through this journey with regular tests, hands-on projects, and personalized feedback.

Good luck with your interview preparation!

[eklavyaonline]

Interview questions on core java

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[jobbacking]

Core Java competitive tests

A Java Developer is responsible for the design, development, and management of Java-based applications. Because Java is used so widely, particularly by large organizations, the daily roles vary widely but can include owning a particular application or working on several at one time. In our current project, we are exploring core java concepts end to end along with programmatic explanations.

Payroll is the process by which employers pay an employee for the work they have completed. Any business with employees should have a payroll process established; payroll is often the largest expense for a business. An effective and efficient payroll process will ensure that employees are paid accurately and consistently, keeping them satisfied with this aspect of employment and allowing HR to focus on other areas.

A payroll system involves everything that has to do with the payment of employees and the filing of ­employment taxes. This includes keeping track of hours, calculating wages, withholding taxes and other deductions, printing and delivering checks and paying employment taxes to the government.

Advantages of keeping a diary

The advantages of Payroll System include:

1. Easy Calculations

Accuracy is required to pay employees the right money they have earned. To avoid the difficulty of manually computing the payroll, you can use a software to automate the process. The process is productive and efficient to save time and money. Your accounting department can create reports and financial documents easily.

2. Easy Forecasting

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15 Technical Core Java Interview Questions Answers for Experienced Developers

When the experience of a Java Programmer grows in the years e.g. when it goes from beginner years ( 2 to 4) to more experience or sort of senior level ( 5 to 7 years), Core Java Interview Questions also change a bit. Of course, basics like data structure, algorithms, and object-oriented programming remains the same, but types of questions will become more advanced and their answers will definitely need to be more detailed and accurate. I often receive queries about core Java questions asked to a senior developer of 5 to 6-year experience, or, sometimes, I am going for an interview of senior Java developer, what kind of questions I should expect. This sometimes puzzles me, that once you become senior, you automatically start taking part in the interview, and you should have an idea of what to expect on Interviews, but at the same time, I can understand that having an idea of questions before going on Interview, helps preparation. Of course, you are not going to get a question like the one you have faced on 2 to 3 years level Java Interviews, but It also depends on different rounds of Interviews.

 I have not seen many changes in the questions asked on the telephonic round, which almost remains the same. You will find some fact-based, some coding questions and a few tricky questions. On the other hand face-to-face, interviews have become more detailed and more tricky, especially with nasty follow-ups.

 In this article, I am going to share some 15 technical core Java Interview Questions, which I have seen asked senior and experienced developers of 4 to 6 years of experience in different interviews, mostly on telephonic rounds.  I am not posting answers as of now, but you can find answers to most of the questions on here or the Javarevisited blog.

   If you are in a hurry and actively looking for a Java Developer Job, you can also take help from some good books written to prepare you for Java J2EE interviews. Books like, Java Programming Interview Exposed covers all important topics for both core Java and Java EE interviews, which include basic Java questions, data structure and algorithms, JVM internals and GC tuning, Hibernate and Spring interview questions, JUnit ant unit testing questions, and some Java 8 stuff.

 It also covers knowledge of other JVM languages like Scala, Groovy and other platforms like Android. A perfect companion to do well in Java interviews.

 If you want to prepare more on the coding side then you can also check out Cracking the Coding Interview, which contains almost 150 programming questions and solutions from technical interviews of big tech companies like Amazon, Facebook, Google, Twitter, and Microsoft.

   15 Core Java Questions For 5 to 6 Years Experienced

All these questions have been collected from quite senior developers, which has at least 5 years of experience. They have seen these questions on different rounds of their core Java interviews, including telephonic and face-to-face rounds on different companies, mostly on Investment banks like Barclays, Morgan, RBS, and others.

  1. What is Busy Spinning? Why Should You Use It in Java?

One of the interesting multithreading question to senior Java programmers, busy spinning is a waiting strategy, in which a thread just wait in a loop, without releasing the CPU for going to sleep. This is a very advanced and specialized waiting strategy used in the high-frequency trading application when the wait time between two messages is very minimal.

 By not releasing the CPU or suspending the thread, your thread retains all the cached data and instruction, which may be lost if the thread was suspended and resumed back in a different core of CPU.

 This question is quite popular in high-frequency low latency programming domain, where programmers are trying for extremely low latency in the range of micro to milliseconds. See here more 50+ advanced thread interview questions for experienced programmers.

  core java interview questions for senior developers

    2. What is Read-Write Lock? Does ConcurrentHashMap in Java Use The ReadWrite Lock?

ReadWrite Lock is an implementation of a lock stripping technique, where two separate locks are used for reading and write operation. Since read operation doesn't modify the state of the object, it's safe to allow multiple thread access to a shared object for reading without locking, and by splitting one lock into the read and write lock, you can easily do that.

 Java provides an implementation of a read-write lock in the form of the ReentrantReadWritLock class in the java.util.concurrent.lock package. This is worth looking before you decide to write your own read-write locking implementation.

 Also, the current implementation of java.util.ConcurrentHashMap doesn't use the ReadWriteLock, instead, it divides the Map into several segments and locks them separately using different locks. This means any given time, only a portion of the ConcurrentHashMap is locked, instead of the whole Map. See how ConcurrentHashMap internally works in Java for more detail.

  This core Java question is also very popular on senior and more experienced level Java interviews e.g. 4 to 6 years, where you expect Interviewer to go into more detail, like by asking you to provide an implementation of the read-write lock with different policies. If you are an experienced Java programmer, consider reading Java Concurrency in Practice to gain more confidence about multithreading and concurrency in Java.

    3. How to Make an Object Immutable in Java? Why Should You Make an Object Immutable?

Well, Immutability offers several advantages including thread-safety, ability to cache and result in a more readable multithreading code. See here to learn how to make objects Immutable. Once again, this question can also go into more detail and depending on your answer, can bring several other questions e.g. when you mention Spring is Immutable, be ready with some reasons on Why String is Immutable in Java.

   4. Which Design Patterns have You Used in Your Java Project?

Always expect some design patterns related question for Core Java Interview of senior developer position. It's a better strategy to mention any GOF design pattern rather than Singleton or MVC, which almost every other Java developer use it.

 Your best bet can be a Decorator pattern or maybe Dependency Injection Pattern, which is quite popular in the Spring Framework. It's also good to mention only the design patterns which you have actually used in your project and knows it's tradeoffs.

 It's common that once you mention a particular design pattern say Factory or Abstract Factory, Interviewer's next question would be, have you used this pattern in your project? So be ready with proper examples and why you choose a particular pattern. You can also see this article for more advanced design pattern questions from Java interviews.

    5.  Do you know about Open Closed Design Principle or Liskov Substitution Principle?

Design patterns are based on object-oriented design principles, which I strongly felt every object-oriented developer and the programmer should know, or, at least, have a basic idea of what are these principles and how they help you to write better object-oriented code. I

 f you don't know the answer to this question, you can politely say No, as it's not expected from you to know the answer to every question, but by answering this question, you can make your claim stronger as many experienced developers fail to answer basic questions like this. See Clean Code learn more about object-oriented and SOLID design principles.

    6. Which Design Pattern Will You Use to Shield Your Code From a Third Party library Which Will Likely to be Replaced by Another in Couple of Months?

 This is just one example of the scenario-based design pattern interview question. In order to test the practical experience of Java developers with more than 5 years of experience, companies ask this kind of question.  You can expect more real-world design problems in different formats, some with more detail explanation with context, or some with only intent around.

 One way to shield your code from a third-party library is to code against an interface rather than implementation and then use dependency injection to provide a particular implementation. This kind of question is also asked quite frequently to experienced and senior Java developers with 5 to 7 years of experience.

   Question 7)  How do you prevent SQL Injection in Java Code?

This question is more asked J2EE and Java EE developers than core Java developers, but, it is still a good question to check the JDBC and Security skill of experienced Java programmers.

 You can use PreparedStatement to avoid SQL injection in Java code. Use of the PreparedStatement for executing SQL queries not only provides better performance but also shield your Java and J2EE application from SQL Injection attack.

 On a similar note, If you are working more on Java EE or J2EE side, then you should also be familiar with other security issues including Session Fixation attack or Cross-Site Scripting attack and how to resolve them. These are some fields and questions where a good answer can make a lot of difference in your selection.

   Question 8) Tell me about different Reference types available in Java, e.g. WeakReference, SoftReference or PhantomReference? and Why should you use them?

Well, they are different reference types coming from java.lang.ref package and provided to assist Java Garbage Collector in a case of low memory issues. If you wrap an object with WeakReference than it will be eligible for garbage collected if there are o strong references. They can later be reclaimed by the Garbage collector if JVM is running low on memory.

 The java.util.WeakHashMap is a special Map implementation, whose keys are the object of WeakReference, so if only Map contains the reference of any object and no other, those object can be garbage collected if GC needs memory. See Java Performance The Definitive Guide learn more about how to deal with performance issues in Java.

  core java technical interview questions and answers for experienced

   Question 9) How does get method of HashMap works in Java?

Yes, this is still one of the most popular core Java questions for senior developer interviews. You can also expect this question on telephonic round, followed by lot's of follow-up questions as discussed in my post how does HashMap work in Java.

 The short answer to this question is that HashMap is based upon hash table data structure and uses hashCode() method to calculate hash code to find the bucket location on the underlying array and equals() method to search the object in the same bucket in case of a collision. See here to learn more about how does get() method of HashMap works in Java.

    Question 10) Which Two Methods HashMap key Object Should Implement?

This is one of the follow-up questions I was saying about in previous questions. Since working of HashMap is based upon hash table data structure, any object which you want to use as a key for HashMap or any other hash-based collection e.g. Hashtable, or ConcurrentHashMap must implement equals() and hashCode() method.

 The hashCode() is used to find the bucket location i.e. index of the underlying array and equals() method is used to find the right object in a linked list stored in the bucket in case of a collision. By the way, from Java 8, HashMap also started using a tree data structure to store the object in case of a collision to reduce the worst-case performance of HashMap from O(n) to O(logN). See the article for learning more about how does HashMap handless collisions in Java.

    Question 11) Why Should an Object Used As the Key should be Immutable?

This is another follow-up of previous core Java interview questions. It's good to test the depth of technical knowledge of candidates by asking more and more questions on the same topic. If you know about Immutability, you can answer this question by yourself. The short answer to this question is key should be immutable so that hashCode() method always return the same value.

 Since the hash code returned by hashCode() method depends on the content of the object i.e. values of member variables. If an object is mutable than those values can change and so is the hash code. If the same object returns different hash code once you inserted the value in HashMap, you will end up searching in different bucket locations and will not able to retrieve the object. That's why a key object should be immutable. It's not a rule enforced by the compiler but you should take care of it as an experienced programmer. See the article for more advanced Java Collection interview questions.

    Question 12) How does ConcurrentHashMap achieve its Scalability?

Sometimes this multithreading + collection interview question is also asked as, the difference between ConcurrentHashMap and Hashtable in Java. The problem with synchronized HashMap or Hashtable was that the whole Map is locked when a thread performs any operation with Map.

 The java.util.ConcurrentHashMap class solves this problem by using a lock stripping technique, where the whole map is locked at different segments and only a particular segment is locked during the write operation, not the whole map. The ConcurrentHashMap also achieves its scalability by allowing lock-free reads as read is a thread-safe operation.  See here for more advanced multi-threading and concurrency questions in Java.

    Question 13) How do you share an object between threads? or How to pass an object from one thread to another?

There are multiple ways to do that e.g. Queues, Exchanger, etc, but BlockingQueue using Producer-Consumer pattern is the easiest way to pass an object from thread to another.

    Question 14) How do find if your program has a deadlock?

By taking thread dump using kill -3, using JConsole or VisualVM), I suggest preparing this core java interview question in more detail, as the Interviewer definitely likes to go with more detail e.g. they will press with questions like, have you really done that in your project or not?

   Question 15) How do you avoid deadlock while coding?

By ensuring locks are acquire and released in an ordered manner, see here for a detailed answer to this question.

  That's all on this list of Core Java Interview Questions for senior developers and experienced programmers. I haven't included a lot of questions from other important topics like Exception handling, Garbage Collection tuning and JVM Internals, which is also very popular among Java programmers with 5 to 6 years of experience, maybe I will include them in the next part.[Source]-https://www.java67.com/2013/07/15-advanced-core-java-interview-questions-answers-senior-experienced-5-6-years-programmers-developers.html

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Introduction to Java Programming with Jshell using Multiplication Table

Step 00 – Getting Started with Programming Step 01 – Introduction to Multiplication Table challenge Step 02 – Launch JShell Step 03 – Break Down Multiplication Table Challenge Step 04 – Java Expression – An Introduction Step 05 – Java Expression – Exercises Step 06 – Java Expression – Puzzles Step 07 – Printing output to console with Java Step 08 – Printing output to console with Java – Exercise Statements Step 09 – Printing output to console with Java – Exercise Solutions Step 10 – Printing output to console with Java – Puzzles Step 11 – Advanced Printing output to console with Java Step 12 – Advanced Printing output to console with Java – Exercises and Puzzles Step 13 – Introduction to Variables in Java Step 14 – Introduction to Variables in Java – Exercises and Puzzles Step 15 – 4 Important Things to Know about Variables in Java Step 16 – How are variables stored in memory? Step 17 – How to name a variable? Step 18 – Understanding Primitive Variable Types in Java Step 19 – Understanding Primitive Variable Types in Java – Choosing a Type Step 20 – Java Assignment Operator Step 21 – Java Assignment Operator – Puzzles on Increment, Decrement and Compound Assignment Step 23 – Java Conditionals and If Statement – Introduction Step 24 – Java Conditionals and If Statement – Exercise Statements Step 25 – Java Conditionals and If Statement – Exercise Solutions Step 26 – Java Conditionals and If Statement – Puzzles Step 27 – Java For Loop to Print Multiplication Table – Introduction Step 28 – Java For Loop to Print Multiplication Table – Exercise Statements Step 29 – Java For Loop to Print Multiplication Table – Exercise Solutions Step 30 – Java For Loop to Print Multiplication Table – Puzzles Step 31 – Programming Tips : JShell – Shortcuts, Multiple Lines and Variables TODO Move up Step 32 – Getting Started with Programming – Revise all Terminology

Introduction to Method with Multiplication Table

Step 00 – Section 02 – Methods – An Introduction Step 01 – Your First Java Method – Hello World Twice and Exercise Statements Step 02 – Introduction to Java Methods – Exercises and Puzzles Step 03 – Programming Tip – Editing Methods with JShell Step 04 – Introduction to Java Methods – Arguments and Parameters Step 05 – Introduction to Java Method Arguments – Exercises Step 06 – Introduction to Java Method Arguments – Puzzles and Tips Step 07 – Getting back to Multiplication Table – Creating a method Step 08 – Print Multiplication Table with a Parameter and Method Overloading Step 09 – Passing Multiple Parameters to a Java Method Step 10 – Returning from a Java Method – An Introduction Step 11 – Returning from a Java Method – Exercises Step 99 – Methods – Section Review

Introduction to Java Platform

Step 00 – Section 03 – Overview Of Java Platform – Section Overview Step 01 – Overview Of Java Platform – An Introduction – java, javac, bytecode and JVM Step 02 – Java Class and Object – First Look Step 03 – Create a method in a Java class Step 04 – Create and Compile Planet.java class Step 05 – Run Planet calss with Java – Using a main method Step 06 – Play and Learn with Planet Class Step 07 – JDK vs JRE vs JVM

Introduction to Eclipse – First Java Project

Step 01 – Creating a New Java Project with Eclipse Step 02 – Your first Java class with Eclipse Step 03 – Writing Multiplication Table Java Program with Eclipse Step 04 – Adding more methods for Multiplication Table Program Step 05 – Programming Tip 1 : Refactoring with Eclipse Step 06 – Programming Tip 2 : Debugging with Eclipse Step 07 – Programming Tip 3 : Eclipse vs JShell – How to choose?

Introduction To Object Oriented Programming

Step 00 – Introduction to Object Oriented Programming – Section Overview Step 01 – Introduction to Object Oriented Programming – Basics Step 02 – Introduction to Object Oriented Programming – Terminology – Class, Object, State and Behavior Step 03 – Introduction to Object Oriented Programming – Exercise – Online Shopping System and Person Step 04 – Create Motor Bike Java Class and a couple of objects Step 05 – Exercise Solutions – Book class and Three instances Step 06 – Introducing State of an object with speed variable Step 07 – Understanding basics of Encapsulation with Setter methods Step 08 – Exercises and Tips – Getters and Generating Getters and Setters with Eclipse Step 09 – Puzzles on this and initialization of member variables Step 10 – First Advantage of Encapsulation Step 11 – Introduction to Encapsulation – Level 2 Step 12 – Encapsulation Exercises – Better Validation and Book class Step 13 – Introdcution to Abstraction Step 14 – Introduction to Java Constructors Step 15 – Introduction to Java Constructors – Exercises and Puzzles Step 16 – Introduction to Object Oriented Programming – Conclusion

Primitive Data Types And Alternatives

Step 00 – Primitive Data Types in Depth – Section Overview Step 01 – Basics about Java Integer Data Types – Casting, Operators and More Step 02 – Java Integer Data Types – Puzzles – Octal, Hexadecimal, Post and Pre increment Step 03 – Java Integer Data Types – Exercises – BiNumber – add, multiply and double Step 04 – Java Floating Point Data Types – Casting , Conversion and Accuracy Step 05 – Introduction to BigDecimal Java Class Step 06 – BigDecimal Puzzles – Adding Integers Step 07 – BigDecimal Exercises – Simple Interest Calculation Step 08 – Java Boolean Data Type – Relational and Logical Operators Step 09 – Java Boolean Data Type – Puzzles – Short Circuit Operators Step 10 – Java Character Data Type char – Representation and Conversion Step 11 – Java char Data Type – Exercises 1 – isVowel Step 12 – Java char Data Type – Exercises 2 – isDigit Step 13 – Java char Data Type – Exercises 3 – isConsonant, List Upper Case and Lower Case Characters Step 14 – Primitive Data Types in Depth – Conclusion

Conditionals

Step 00 – Conditionals with Java – Section Overview Step 01 – Introduction to If Else Statement Step 02 – Introduction to Nested If Else Step 03 – If Else Statement – Puzzles Step 04 – If Else Problem – How to get User Input in Java? Step 05 – If Else Problem – How to get number 2 and choice from user? Step 06 – If Else Problem – Implementing with Nested If Else Step 07 – Java Switch Statement – An introduction Step 08 – Java Switch Statement – Puzzles – Default, Break and Fall Through Step 09 – Java Switch Statement – Exercises – isWeekDay, nameOfMonth, nameOfDay Step 10 – Java Ternary Operation – An Introduction Step 11 – Conditionals with Java – Conclusion

Loops

Step 00 – Java Loops – Section Introduction Step 01 – Java For Loop – Syntax and Puzzles Step 02 – Java For Loop – Exercises Overview and First Exercise Prime Numbers Step 03 – Java For Loop – Exercise – Sum Upto N Numbers and Sum of Divisors Step 04 – Java For Loop – Exercise – Print a Number Triangle Step 05 – While Loop in Java – An Introduction Step 06 – While Loop – Exericises – Cubes and Squares upto limit Step 07 – Do While Loop in Java – An Introduction Step 08 – Do While Loop in Java – An Example – Cube while user enters positive numbers Step 09 – Introduction to Break and Continue Step 10 – Selecting Loop in Java – For vs While vs Do While

Reference Types

Step 00 – Java Reference Types – Section Introduction Step 01 – Reference Types – How are they stored in Memory? Step 02 – Java Reference Types – Puzzles Step 03 – String class – Introduction and Exercise – Print each word and char on a new line Step 04 – String class – Exercise Solution and Some More Important Methods Step 05 – Understanding String is Immutable and String Concat, Upper Case, Lower Case, Trim methods Step 06 – String Concatenation and Join, Replace Methods Step 07 – Java String Alternatives – StringBuffer and StringBuilder Step 08 – Java Wrapper Classes – An Introduction – Why and What? Step 09 – Java Wrapper Classes – Creation – Constructor and valueOf Step 10 – Java Wrapper Classes – Auto Boxing and a Few Wrapper Constants – SIZE, BYTES, MAX_VALUE and MIN_VALUE Step 11 – Java Dates – Introduction to LocalDate, LocalTime and LocalDateTime Step 12 – Java Dates – Exploring LocalDate – Creation and Methods to play with Date Step 13 – Java Dates – Exploring LocalDate – Comparing Dates and Creating Specific Dates Step 14 – Java Reference Types – Conclusion

Arrays and ArrayLists

Step 00 – Introduction to Array and ArrayList – Section Introduction with a Challenge Step 01 – Understanding the need and Basics about an Array Step 02 – Java Arrays – Creating and Accessing Values – Introduction Step 03 – Java Arrays – Puzzles – Arrays of Objects, Primitive Data Types, toString and Exceptions Step 04 – Java Arrays – Compare, Sort and Fill Step 05 – Java Arrays – Exercise – Create Student Class – Part 1 – Total and Average Marks Step 06 – Java Arrays – Exercise – Create Student Class – Part 2 – Maximum and Minimum Mark Step 07 – Introduction to Variable Arguments – Need Step 08 – Introduction to Variable Arguments – Basics Step 09 – Introduction to Variable Arguments – Enhancing Student Class Step 10 – Java Arrays – Using Person Objects and String Elements with Exercises Step 11 – Java String Arrays – Exercise Solutions – Print Day of Week with Most number of letters and more Step 12 – Adding and Removing Marks – Problem with Arrays Step 13 – First Look at ArrayList – An Introduction Step 14 – First Look at ArrayList – Refactoring Student Class to use ArrayList Step 15 – First Look at ArrayList – Enhancing Student Class with Add and Remove Marks Step 16 – Introduction to Array and ArrayList – Conclusion

Object Oriented Programming Again

Step 00 – Object Oriented Programming – Level 2 – Section Introduction Step 01 – Basics of Designing a Class – Class, Object, State and Behavior Step 02 – OOPS Example – Fan Class – Deciding State and Constructors Step 03 – OOPS Example – Fan Class – Deciding Behavior with Methods Step 04 – OOPS Exercise – Rectangle Class Step 05 – Understanding Object Composition with Customer Address Example Step 06 – Understanding Object Composition – An Exercise – Books and Reviews Step 07 – Understanding Inheritance – Why do we need it? Step 08 – Object is at top of Inheritance Hierarchy Step 09 – Inheritance and Overriding – with toString() method Step 10 – Java Inheritance – Exercise – Student and Employee Classes Step 11 – Java Inheritance – Default Constructors and super() method call Step 12 – Java Inheritance – Puzzles – Multiple Inheritance, Reference Variables and instanceof Step 13 – Java Abstract Class – Introductio Step 14 – Java Abstract Class – First Example – Creating Recipes with Template Method Step 15 – Java Abstract Class – Puzzles Step 16 – Java Interface – Example 1 – Gaming Console – How to think about Intefaces? Step 17 – Java Interface – Example 2 – Complex Algorithm – API defined by external team Step 18 – Java Interface – Puzzles – Unimplemented methods, Abstract Classes, Variables, Default Methods and more Step 19 – Java Interface vs Abstract Class – A Comparison Step 20 – Java Interface Flyable and Abstract Class Animal – An Exercise Step 21 – Polymorphism – An introduction

Collections

Step 01 – Java Collections – Section Overview with Need For Collections Step 02 – List Interface – Introduction – Position is King Step 03 – List Inteface – Immutability and Introduction of Implementations – ArrayList, LinkedList and Vector Step 04 – List Inteface Implementations – ArrayList vs LinkedList Step 05 – List Inteface Implementations – ArrayList vs Vector Step 06 – List Inteface – Methods to add, remove and change elements and lists Step 07 – List and ArrayList – Iterating around elements Step 08 – List and ArrayList – Choosing iteration approach for printing and deleting elements Step 09 – List and ArrayList – Puzzles – Type Safety and Removing Integers Step 10 – List and ArrayList – Sorting – Introduction to Collections sort static method Step 11 – List and ArrayList – Sorting – Implementing Comparable Inteface in Student Class Step 12 – List and ArrayList – Sorting – Providing Flexibility by implementing Comparator interface Step 13 – List and ArrayList – A Summary Step 14 – Set Interface – Introduction – No Duplication Step 15 – Understanding Data Structures – Array, LinkedList and Hashing Step 16 – Understanding Data Structures – Tree – Sorted Order Step 17 – Set Interface – Hands on – HashSet, LinkedHashSet and TreeSet Step 18 – Set Interface – Exercise – Find Unique Characters in a List Step 19 – TreeSet – Methods from NavigableSet – floor,lower,upper, subSet, head and tailSet Step 20 – Queue Interface – Process Elements in Order Step 21 – Introduction to PriorityQueue – Basic Methods and Customized Priority Step 22 – Map Interface – An Introduction – Key and Value Step 23 – Map Interface – Implementations – HashMap, HashTable, LinkedHashMap and TreeMap Step 24 – Map Interface – Basic Operations Step 25 – Map Interface – Comparison – HashMap vs LinkedHashMap vs TreeMap Step 26 – Map Interface – Exercise – Count occurances of characters and words in a piece of text Step 27 – TreeMap – Methods from NavigableMap – floorKey, higherKey, firstEntry, subMap and more Step 28 – Java Collections – Conclusion with Three Tips

Generics

Step 01 – Introduction to Generics – Why do we need Generics? Step 02 – Implementing Generics for the Custom List Step 03 – Extending Custom List with a Generic Return Method Step 04 – Generics Puzzles – Restrictions with extends and Generic Methods Step 05 – Generics and WildCards – Upper Bound and Lower Bound

Introduction to Functional Programming

Step 01 – Introduction to Functional Programming – Functions are First Class Citizens Step 02 – Functional Programming – First Example with Function as Parameter Step 03 – Functional Programming – Exercise – Loop a List of Numbers Step 04 – Functional Programming – Filtering – Exercises to print odd and even numbers from List Step 05 – Functional Programming – Collect – Sum of Numbers in a List Step 06 – Functional Programming vs Structural Programming – A Quick Comparison Step 07 – Functional Programming Terminology – Lambda Expression, Stream and Operations on a Stream Step 08 – Stream Intermediate Operations – Sort, Distinct, Filter and Map Step 09 – Stream Intermediate Operations – Exercises – Squares of First 10, Map String List to LowerCase and Length of String Step 10 – Stream Terminal Operations – 1 – max operation with Comparator Step 11 – Stream Terminal Operations – 2 – min, collect to List, Step 12 – Optional class in Java – An Introduction Step 13 – Behind the Screens with Functional Interfaces – Implement Predicate Interface Step 14 – Behind the Screens with Functional Interfaces – Implement Consumer Interface Step 15 – Behind the Screens with Functional Interfaces – Implement Function Inteface for Mapping Step 16 – Simplify Functional Programming code with Method References – static and instance methods Step 17 – Functions are First Class Citizens Step 18 – Introduction to Functional Programming – Conclusion

Introduction to Threads And Concurrency

Step 01 – Introduction to Threads and MultiThreading – Need for Threads Step 02 – Creating a Thread for Task1 – Extending Thread Class Step 03 – Creating a Thread for Task2 – Implement Runnable Interface Step 04 – Theory – States of a Thread Step 05 – Placing Priority Requests for Threads Step 06 – Communication between Threads – join method Step 07 – Thread utility methods and synchronized keyword – sleep, yield Step 08 – Need for Controlling the Execution of Threads Step 09 – Introduction to Executor Service Step 10 – Executor Service – Customizing number of Threads Step 11 – Executor Service – Returning a Future from Thread using Callable Step 12 – Executor Service – Waiting for completion of multiple tasks using invokeAll Step 13 – Executor Service – Wait for only the fastest task using invokeAny Step 14 – Threads and MultiThreading – Conclusion

Introduction to Exception Handling

Step 01 – Introduction to Exception Handling – Your Thought Process during Exception Handling Step 02 – Basics of Exceptions – NullPointerException and StackTrace Step 03 – Basics of Handling Exceptions – try and catch Step 04 – Basics of Handling Exceptions – Exception Hierarchy, Matching and Catching Multiple Exceptions Step 05 – Basics of Handling Exceptions – Need for finally Step 06 – Basics of Handling Exceptions – Puzzles Step 07 – Checked Exceptions vs Unchecked Exceptions – An Example Step 08 – Hierarchy of Errors and Exceptions – Checked and Runtime Step 09 – Throwing an Exception – Currencies Do Not Match Runtime Exception Step 10 – Throwing a Checked Exception – Throws in method signature and handling Step 11 – Throwing a Custom Exception – CurrenciesDoNotMatchException Step 12 – Write less code with Try with Resources – New Feature in Java 7 Step 13 – Basics of Handling Exceptions – Puzzles 2 Step 14 – Exception Handling – Conclusion with Best Practices

Files and Directories

Step 01 – List files and folders in Directory with Files list method Step 02 – Recursively List and Filter all files and folders in Directory with Step Files walk method and Search with find method Step 03 – Read content from a File – Files readAllLines and lines methods Step 04 – Writing Content to a File – Files write method Step 05 – Files – Conclusion

More Concurrency with Concurrent Collections and Atomic Operations

Step 01 – Getting started with Synchronized Step 02 – Problem with Synchronized – Less Concurrency Step 03 – Enter Locks with ReEntrantLock Step 04 – Introduction to Atomic Classes – AtomicInteger Step 05 – Need for ConcurrentMap Step 06 – Implementing an example with ConcurrentHashMap Step 07 – ConcurrentHashMap uses different locks for diferrent regions Step 08 – CopyOnWrite Concurrent Collections – When reads are more than writes Step 09 – Conclusion

Java Tips

Java Tip 01 – Imports and Static Imports Java Tip 02 – Blocks Java Tip 03 – equals method Java Tip 04 – hashcode method Java Tip 05 – Class Access Modifiers – public and default Java Tip 06 – Method Access Modifiers – public, protected, private and default Java Tip 07 – Final classes and Final methods Java Tip 08 – Final Variables and Final Arguments Java Tip 09 – Why do we need static variables? Java Tip 09 – Why do we need static methods? Java Tip 10 – Static methods cannot use instance methods or variables Java Tip 11 – public static final – Constants Java Tip 12 – Nested Classes – Inner Class vs Static Nested Class Java Tip 13 – Anonymous Classes Java Tip 14 – Why Enum and Enum Basics – ordinal and values Java Tip 15 – Enum – Constructor, variables and methods Java Tip 16 – Quick look at inbuild Enums – Month, DayOfWeek

Zero risk. 30 day money-back guarantee with every purchase of the course. You have nothing to lose!

Start Learning Now. Hit the Enroll Button!

Who this course is for:

You have ZERO programming experience and want to learn Java Programming

You are a Beginner at Java Programming and want to Learn to write Great Java Programs

You want to learn the Basics of Object Oriented Programming with Java

You want to learn the Basics of Functional Programming with Java

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How to Prepare for Java Interview – A Complete Guide

Java Interviews are somewhat unique in relation to customary programming interviews on tech savvy and product based organizations like Google, Amazon, Microsoft, or Facebook. To start with, despite the fact that it has inquiries from Data Structure and Algorithms like String or Array, you can in any case figure out how to clear Java interviews on the off chance that you are not a specialist on them. The inquiries are somewhat simpler and more functional than those organizations. Another significant thing about Java meetings are questions dependent on Java programming language and JDK API. Since Java is additionally an Object-situated programming language, you will discover bunches of OOP inquiries there.

Since Java is essentially utilized as an application programming language, the center is adjusted appropriately with inquiries for the most part concentrating on API, Java ideas, and configuration designs.

Additionally, Java meetings change a great deal contingent on the applicant's understanding. For instance, junior engineers with 1 to 2 or 3 to 4 years of experience will see more inquiries on subjects like Java basics, API, information structure and calculations.

Increasingly senior engineers like Java developers with 5 to 6 years of experience will discover more inquiries on simultaneous programming, Java simultaneousness API, JVM internals, GC tuning, and Java Performance.

So your readiness ought to be lined up with your experience and not simply centered around basic programming questions.

Additionally, Java EE meetings are entirely unexpected than center Java interviews since center Java meetings are for the most part centered around center Java ideas like Concurrency, Collections, and JVM internals, while Java EE meetings depend on structure like JSF, Spring, Hibernate and others.

The most ideal approach to plan for Java meetings is to join a course like Java Interview Guide: 200+ Interview Questions and Answers, however there is not a viable alternative for the experience you can even now figure out how to cruise through via cautiously getting ready for your Java interviews.

Which Topics to Prepare for Java Interviews?

As I told, the significance of subjects relies on the hopeful's understanding. I would pose more inquiries from Java basics like String, Collections, approaches() and hashcode and OOP idea to a fresher or Junior Java engineers of 2 years experience, yet those points will be unreasonably insignificant for Java designer of 4 to 5 years experience.

For those, I like to ask Concurrency, JVM internals, Garbage Collection, testing, and configuration designs. Something else which chooses which subject you ought to plan for your meeting is the Job portrayal.

Likewise, there is no preferred guide over Job portrayal to get ready for applicable subjects.

For instance, in the event that you are getting down to business for a center Java multi-stringing based application then you ought to get ready well for center Java subjects like multi-stringing and simultaneousness, Java Collections, Generics, Enum, GC Algorithms and JVM internals.

Additionally, on the off chance that you are getting down to business for Java Web Service application than planning about REST and SOAP, XML, JSON, and other important subjects.

For Java, web application engineers, JSP, Servlet, Spring, and Hibernate could really compare to multi-stringing and JVM internals. Essentially for an Android engineer, aside from information of Java basics, knowing Android API is progressively significant.

By the by here is the rundown of themes I recommend to any Java engineer who is not kidding about meetings.

Java Fundamentals

Article Oriented Concepts

Information Structure and Algorithms  

Multithreading, simultaneousness, and string nuts and bolts

Date type transformation and essentials  

Trash Collection  

Java Collections Framework  

Exhibit  

String  

GOF Design Patterns  

Strong structure standards  

Unique class and interface  

Java nuts and bolts for example approaches and hashcode

Generics and Enum  

Java IO and NIO  

Normal Networking conventions

Information structure and calculation in Java  

Ordinary articulations

JVM internals  

Java Best Practices

JDBC  

Date, Time and Calendar  

XML Processing in Java  

JUnit

Programming  

Aside from these subjects, you could likewise take help from books like Java meeting uncovered and the Cracking the coding meeting. These are incredible books composed particularly from meeting point of view and it will give you a smart thought of what's in store on Java programming prospective employee meet-ups.

You will likewise discover inquiries posed from different tech organizations like Facebook, Google and Investment banks like Barclays, Citi, Deutsche Bank, Morgan Stanley, and others.

For an increasingly genuine designer who needs to turn into a specialist and not simply to concentrate on clearing a meeting, I recommend you investigate my 12 propelled Java books for experienced software engineers’ article. It contains books for each significant theme in Java.

Visit:http://infocampus.co.in/java-training-bangalore.html

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Best Java Training Institute in Dubai

Site Galleria offers Best Java Training in Dubai with most experienced professionals. Our Instructors are working in Java and related technologies for many years in MNC's.

CORE JAVA AND ADVANCED JAVA TRAINING

Core Java Training In Dubai, Advanced Java Training In Dubai, Top Java Training Institute In Dubai, Online Java Training In Dubai, Training Institute For Java In Dubai, Java Training With Placement In Dubai

We aware of industry needs and we are offering Java Training in Dubai in more practical way. Our team of Java trainers offers Java in Classroom training, Java Online Training and Java Corporate Training services.

We framed our syllabus to match with the real-world requirements for both beginner level to advanced level. Our training will be handled in either weekday or weekends program depends on participants requirement.

Get Java Training in Dubai with Certified Java Experts. We rated as Best Java Training institute in Dubai with 100% Placement Assistance. We ensure that you will become java Expert from this Java Course.

The programming language, Java, was first introduced by Sun Micro systems in the year 1995. And it hasn’t looked back ever since.

We do offer Fast-Track Java Training in Dubai and One-to-One Java Training in Dubai. Here are the major topics we cover under this Java course Syllabus Core Java & J2EE.

Every topic will be covered in mostly practical way with examples.

Site Galleria located in various places in Dubai. We are the best Training Institute offers certification-oriented Java Training in Dubai. Our participants will be eligible to clear all type of interviews at end of our sessions.

We are building a team of Java trainers and participants for their future help and assistance in subject. Our training will be focused on assisting in placements as well. We have separate HR team professionals who will take care of all your interview needs.

Our Java Training in Dubai Course Fees is very moderate compared to others. We are the only Java training institute who can share video reviews of all our students. We mentioned the course timings and start date as well in below.

If you are fresher looking Java courses in Dubai with placement training or working professional in search of Java certification training in Dubai for the advancement of your Java/J2EE knowledge, then put a full stop on your Google search Java training near me or Java Training in Dubai.

Enroll for demo class at Site Galleria and fulfill your dream of pursuing career in Java/ J2EE development.

We have an excellent track record of creating high-quality Java professionals who are good at solving industry’s challenging & real-time problems by applying skills learned in our Java training institute in Dubai.

The main reason which makes us unique Live training institute for Java Certification Training in Dubai is its curriculum which strengthens fundamental of objects-oriented concepts and algorithm concepts along with Java/J2EE.

Hence most of the students who look for Java training in Dubai prefer our job-oriented training program & placement training.

After completing Java/J2EE training from our institute candidates will be capable to create full fledge Java/ J2EE application. We cover all the major aspect of Java which is required to develop cutting edge applications using the latest version of J2EE, J2SE, and J2ME and various Java development IDEs i.e. Eclipse, NetBeans etc.

5 most popular training course in UAE

Core Java Syllabus in Dubai

Module 1: Introduction

Java Why? What? How? When? Where?

Different Java Versions.

How Java is different from other Technologies

Module 2: Introduction To Java Programming Environment

How to Install & set Path.

A Simple Java Program

Compiling & executing Java Program

Phases of Java Program

Analysis of a Java Program

Understanding Syntax and Semantic Error,

Runtime Exception

Name of a Java Source File

Platform Independency

Java Technology (JDK, JRE, JVM, JIT)

Features of Java

Text Editors

Consoles

Module 3: Fundamentals of Java Programming

Naming convention of Java language

Comments

Statements

Blocks (Static, Non-static/instance)

Identifiers

Keywords

Literals

Primitive Data Types, Range

Reference (User defined) Data type

Variables (Primitive, Reference)

Type Casting, Default Value

Operators

Program/Interview questions

Module 4: Control Structures

Working with Control Structures

Types of Control Structures

Decision Control Structure (if, if-else, if else if, switch –case)

Repetition Control Structure (do –while,while, for)

Program/Interview questions

Module 5: Input Fundamentals And Datatypes In Java

Java program inputs from Keyboard

Methods of Keyboard inputs

Scanner, Buffered Reader

Problem Solving

Java Array

What is Array

Array Declaration in java vs C and C++.

Instantiation of an Array

String vs character array.Accessing Array

Elements, Default Value, for-each loop, varargs

Length of an Array (What is –Array Index Out Of Bounds Exception)

Increasing, Decreasing the Size and Copy of an Array

Multi-Dimensional Arrays

Program/Interview questions

Program/Interview questions Difference between C and C++ with Java

Application Compilation and Run

Interview related Question and Answer

Module 6: Object Oriented Programming (Oops Concepts In Deep)

Procedural Vs Object Oriented Program

Different type of Program Procedural Vs Object Oriented.

Top Down Vs Bottom Up Approach

Introduction to Object Oriented

Abstraction, Encapsulation, Inheritance,

Polymorphism.

Introduction to Classes and Objects

Custom Class Definition

Instance and Static Variables

Different ways to create Object Instance

Instance Variable and it's role in a Class

Constructors, types of Constructor,

Constructor Rule, Constructor Overloading

Static Variable and it's use.

Methods and their behavior.

Constructor vs Methods

Constructors

“this” Keyword

Java Access Modifiers (and Specifiers)

Programming Interview related Question and Answer

Call by value, Call by reference

Module 7: Command-Line Arguments

What is a Command-Line Argument?

Java Application with Command-Line Arguments

Conversion of Command-Line Arguments

Passing Command-Line Arguments

Using methods (Static , Non Static)

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Module 8: Integrated Development Environment

Using various Editors

Program Compilation, Execution in Editor

Using Eclipse IDE

Project Set Up

Source File Generation

Application Compilation and Run

Module 9: Inner Class

First View of Inner Class

Outer Class Access

Types of Inner Class

Module 10: Inheritance

Complete concepts of Inheritance

Sub-Classes

Object Classes

Constructor Calling Chain

The use of "super" Keyword

The use of “private” keyword inheritance.

Reference Casting

Module 11: Abstract Classes and Inheritance

Introduction to Abstract Methods

Abstract Classes and Interface

Interface as a Type

Interface v/s Abstract Class

Interface Definition

Interface Implementation

Multiple Interfaces' Implementation

Interfaces' Inheritance

How to create object of Interface

Module 12: Polymorphism

Introduction to Polymorphism

Types of Polymorphism

Overloading Methods

Overriding Methods

Hiding Methods

Final Class and Method

Polymorphic Behavior in Java

Benefits of Polymorphism

“Is-A” vs “Has-A”

Association Vs Aggregation

Interview related Question and Answer.

Module 13: Package

Package and Class path and its use

First look into Packages

Benefits of Packages

Package Creation and Use

First look into Class path

Class path Setting

Class Import

Package Import

Role of public, protected, default and private w.r.t package

Namespace Management

Package vs. Header File

Creating and Using the Sub Package

Sources and Class Files Management

Module 14: Using Predefined Package & Other Classes

Java.lang Hierarchy

Object class and using toString(), equals(),hashCode(), clone(), finalize() etc

Using Runtime Class, Process Class to play music, video from Java Program

Primitives and Wrapper Class

Math Class

String, StringBuffer, StringBuilder Class

String Constant Pool

Various usage and methods of String,StringBuffer, StringBuilder

Wrapper Classes

System Class using gc(), exit(), etc.

Module 15: New Concepts In Package

Auto boxing and Auto unboxing

Static import.

Instance of operator.

Enum and its use in Java

Working with jar

Module 16: Garbage Collection

Garbage Collection Introduction

Advantages of Garbage Collection

Garbage Collection Procedure

Java API

Interview related Question and Answer

Module 17: Exception Handling

Introduction to Exceptions

Effects of Exceptions

Exception Handling Mechanism

Try, catch, finally blocks

Rules of Exception Handling

Exception class Hierarchy, Checked &

Unchecked Exception

Throw & throws keyword

Custom Exception Class

Chained Exception.

Resource handling & multiple exception class

Interview related Question and Answer.

Module 18: Multithreading

Introduction

Advantages

Creating a Thread by inheriting from Thread class

Run() and start() method.

Constructor of Thread Class

Various Method of Thread Class

Runnable Interface Implementation

Thread Group

Thread States and Priorities

Synchronization method, block

Class & Object Level Lock

Deadlock & its Prevention

Inter thread Synchronization

Life Cycle of Thread

Deprecated methods : stop(), suspend(),resume(), etc

Interview related Question and Answer

Module 19: Input and Output Streams

Java I/O Stream

I/O Stream - Introduction

Types of Streams

Stream Class Hierarchy

Using File Class

Copy and Paste the content of a file

Byte Streams vs Character Streams

Text File vs Binary File

Character Reading from Keyboard by Input Stream Reader

Reading a Line/String from Keyboard by Buffered Reader

Standard I/O Streams Using Data Streams to read/write

primitive data

PrintStream vs PrintWriter Using StreamTokenizer and RandomAccessFile

Interview related Question and Answer

Module 20: Serialization

Introduction to Serialization

Using Object Streams to read/write object

Transient Keyword

Serialization Process

Deserialization Process

Interview related Question and Answer

Module 21: Collection Framework

Generics(Templates)

What is generic

Creating User defined Generic classes

The java.util package

Collection

What is Collection Framework

List, Set & Map interfaces

Using Vector, Array List, Stack,

Linked List, etc.

Using Collections class for sorting

Using Hashtable, Hash Map, Tree Map,

SortedMap, LinkedHashMap etc.

Iterator, Enumerator.

Using Queue, Deque, SortedQue, etc.

Using HashSet, TreeSet, LinkedHashSet etc

Using Random class

Using Properties in a Java Program

Using user defined class for DataStructure

Using Date and Formatting Date class.

Interview related Question and Answer

Module 22: Advanced Java Syllabus

Module 1: JDBC

Introduction to JDBC

Databases and Drivers

Types of Driver

Loading a driver class file

Establishing the Connection to different

Database with different Driver

Executing SQL queries by ResultSet, Statements , Prepared Statment interface.

Using Callable Statement

Transaction Management & Batch Update

Programs/Interview related Question and Answer

Module 2: JSP

· Basics Of Jsp

Life cycle of JSPJSP APIJSP in Eclipse and other IDE'sPrograms/Interview related Question and Answer.

· Scripting Elements

scriptlet tagexpression tagdeclaration tagPrograms/Interview related Question and Answer.

· Implicit Objects

outrequestresponseconfigapplicationsessionpageContextpageexceptionPrograms/Interview related Question and Answer.

· Directive Elements

page directiveinclude directivetaglib directivePrograms/Interview related Question and Answer.

· Exception Handling

· Action Elements

jsp:forwardjsp:includeBean classjsp:useBeanjsp:setProperty & jsp:getPropertyDisplaying applet in JSP

· Expression Language

What is expression and how to use itDefine expression and use over the service flowThe way to be achieve same in JSP

· Mvc In Jsp

MVC patternWorking flow implementation of MVCCRUD operation using MVCDesign a real time web application using MVC

· JSTL

Discussion on the tag libraryHow to implement and use

· Custom Tags

Custom Tag : What and Why?Custom Tag API?Custom Tag ExampleAttributesIterationCustom URI

Module 3: Servlet

Basics of Servlet

Servlet: What and Why?

Basics of Web

Servlet API

Servlet Interface

GenericServlet

HttpServlet

Servlet Life Cycle

Working with Apache Tomcat Server

Steps to create a servlet in Tomcat

How servlet works?

servlet in Myeclipse

servlet in Eclipse

servlet in Netbeans

· Servlet request

Servlet Request methodsRegistration example with DB

· Servlet Collaboration

Request Dispatchersend Redirect

· Servlet Configure

Servlet Configure methodsServlet Configure example

· Servlet Context

Servlet Context methodsServlet Context example

· Session Tracking

CookiesHidden Form FieldURL RewritingHttpSession

Loading...

Module 4: Concurrent and implementation of collection

Implemenation of ArrayList

Implemenation of LinkedList

Implemenation of HashMap

Implementation of Queue/PriorityQueue/Deque

Module 5: Advanced Multi-Threading

Implemenation of Executor pool service and working mechanism with real time

Big file(Single , multiple ) processing using multiple thread

Implemenation to achieve thread class and runnable interface

Module 6: Javamail

Sending Email

Sending email through Gmail server

Receiving Email

Sending HTML content

Module 7: Design Pattern

Singleton

DAO

DTO

MVC

Front Controller

Factory Method

Abstract

etc

Module 8: Junit

JUnit: What and Why?

Annotations used in JUnit

Assert class

Test Cases

Module 9: Maven

Maven: What and Why?

Ant Vs Maven

How to install Maven?

Maven Repository

Understanding pom.xml

Maven Example

Maven Web App Example

Maven using Eclipse

Why choose for Site Galleria?

Now, while opting for Java training in Dubai, the foremost thing that strikes our mind is which institute can provide us the top-most services at the most affordable rates?

Unlike other institutions that charge an expensive fee, we at Site Galleria Dubai aims to satisfy our candidates by providing them with easy read yet latest training materials, wonderful and comfortable learning environment.

These benefits have what made us stand out of our competitors. In order to aid you to encounter the entire corporate requirements, we’ve come up with a wide variety of Java training in Dubai.

What’s more? The syllabus and course material we are offering are generally prepared by the professional trainers that possess adequate experience in IT companies. Still aren’t sure if our institution is the right fit for your training?

Hit our organization to ascertain the catalog of companies our candidates are recruited in. The Java training at Site Galleria offers theoretical based study emphasized with hands-on sessions. Seeking our custom as well as standard courses, you can turn out to be an expert application developer from a novice.

Related Search Term

Java Training in Dubai

Which is the best institute for Java training in Dubai?

Core and Advanced Java Training Institute in Dubai

Java Training Reviews

Aasif

I have Completed My Java Course with Site Galleria in April. It was great experience doing the course over here. Perfect environment to learn technology and implement own ideas as a fresher. Trainers will explain every scenario with real time examples. The placement team is awesome they helped me a lot in placement. the best thing in Site Galleria is Simultaneously we can attend the drives if we are eligible. I got the Placement in MNC, Thanks Site Galleria team for support.

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My Journey with SITE GALLERIA for Technology Training is awesome, Good infrastructure and Lab access. The teaching Faculty is Very Skilled and Experienced, They are very Friendly Nature always supports the students and clarifies the doubts as per your requirement. Even they guided me for how to crack the interview. I got placement through SITE GALLERIA drive. Thanks SITE GALLERIA

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After completion of My B.E. I joined in SITE GALLERIA for JAVA Training. The trainers are awesome, they will teach real time scenarios with examples and they are very supportive even Placements team will help in Interviews. They conduct weekly drives. I got placement in MNC through SITE GALLERIA. Thanks SITE GALLERIA

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I have joined SITE GALLERIA for Technology for Software testing course. And to my surprise, I found the course and environment both more interesting with such amazingly skilled trainers. Perhaps this is one of the best testing training institution in Dubai offering quality testing tools course over both manual and automation that I can recommend for people who wish to have testing certifications. it is just worth the money.

Falak

Hope my review will helps someone. If you are looking for java training with placement then SITE GALLERIA is one of the institutes in Dubai, facilities are good. They provided free material and they will conduct mock interviews before drives, trainers are good they are very interactive and supportive to students. after course completion I attended 2 drives conducted by SITE GALLERIA. I placed in MNC as a java developer. Thanks SITE GALLERIA for support.

Heena

Nice classes for Java. Trainers are very knowledgeable and help a lot to clear our doubts. Theory and practical’s wise are good. Your practical’s concepts will get clear. Good hands on real devices. Nice environment experience for study. also provides placement after training. Even got practice sessions for how to crack the interview. Overall it was good

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I have done my software testing training from SITE GALLERIA and I really want to tell you that the environment and trainers are awesome. They provide experienced faculties who clear every doubts of every students and provide 100% placement also. it was a superb experience.

Na’imah

This is best Training institute in Dubai for Java & Software Testing for Fresher and they provide placement to each student. I have done my testing course in SITE GALLERIA and finally got placed in good company. Thanks to all the SITE GALLERIA Team members and facilities.!

Sadiya

The initial rounds of interview took place at SITE GALLERIA FOR JAVA & TESTING. SITE GALLERIA is among the top finishing schools with their rich curriculum content. The infrastructure is great & helps to deliver hands on experience for students which help them learn better. The trainers have vast knowledge which are passed onto the students which help them acquire skills as required by companies visiting for recruitment. The journey through SITE GALLERIA was great.

Faisal

SITE GALLERIA for Java & Testing is the best place to learn Java programming language. Can learn manual testing also. It is one of the best coaching institutions for Java in Dubai.

Sana

The learning experience was excellent and and the knowledge gained from that course met industry standards which helped me to clear the rounds with confidence.

Noushin

Very good teaching staff and have experienced teachers and excellent student friendly environment, Great place to learn basic java course. I recommend to everyone to join and start your learning process now. Thanks Site Galleria team to giving everyone such exposure.

Fayd

I would like to thank SITE GALLERIA for the kind of training they provided so that I got placed in a reputed company. Training at SITE GALLERIA was a game changing experience for me. My knowledge in JAVA enhanced to great extent. I revised all the concepts daily and practiced aptitude and coding daily. At SITE GALLERIA we get numerous opportunities as many reputed companies visit for placement drive.

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The trainers will take care of every student from the point he/she entered the SITE GALLERIA till they got placed in a company. The quality of trainers and the infrastructure they provided is the best part of SITE GALLERIA. They provide materials, daily mock tests, weekly mock interviews, labs which will help you a lot in chasing your dream job.

Wajid

SITE GALLERIA is the best institute in Dubai to teach java and testing. Firstly, I would like to thank SITE GALLERIA for encouragements and placements given to us. I don't think there is any other institute which gives u with maximum placements. Thank you, SITE GALLERIA for teaching us JAVA and Testing in students’ friendly manner and placing us. The grooming sessions conducted for the respective companies is very useful. Thanks a lot SITE GALLERIA!

Shaheen

I firstly thank SITE GALLERIA for providing me a opportunity to get a chance to work in mnc when I initially heard about SITE GALLERIA I thought it is also a institute like all other common institute but I was proved wrong by this faculty by their way of teaching, i can tell that irrespective of your branch if you want to get placed in IT industry with good programming skill join SITE GALLERIA, Take this step and you would never get hesitated in your life for this. Thank You SITE GALLERIA

Yaseen

SITE GALLERIA has groomed to a programmer. That's what SITE GALLERIA is all about. They are best among all the java and testing training institute. The thing I liked about SITE GALLERIA is the way of teaching. Trainers here teach each and every concept using simple language and examples so that a student from non CS-IS branch can also grasp hold of the concept. The grooming classes they provide before every drive is very much helpful.

Yasmin

I joined SITE GALLERIA to learn Java and to get placed in a good company which turned out to be the best decision I have ever made. I am very much impressed by the quality with which the concepts are taught. They not only provide opportunities, but also prepare us by providing grooming sessions which were really helpful in getting the job. Thank you SITE GALLERIA for supporting me.

Yasir

I would like to thank SITE GALLERIA for the quality of education they have provided. SITE GALLERIA is the best finishing school and the best place to gain maximum knowledge. They provide the best training in all the aspects such that every individual can step into an IT industry with huge amount of knowledge on the domain.

Java Training Locations in Dubai

Site Galleria branches in Dubai are listed above. And most popular locations where students / professionals are lining up to get trained with us.

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