#Builder Design Pattern in java

[codeonedigest]

Builder Design Pattern Tutorial Explained with Examples for Beginners and Students

Full video link https://youtu.be/8UelSNeFlTc Hello friends, a new #video about #BuilderPattern #Java #Design #Pattern is published on #codeonedigest #youtube channel. This video covers topics 1. What is #BuilderDesignPattern? 2. What is the use of Buil

Builder design pattern is a type of Creational Java design pattern. Builder design pattrn with examples for students, beginners and software engineers. Complete tutorial of Builder design pattern explained with the code examples. Java design pattern is the backbone of software architecture design & development. Gang of Four design patterns are articulated for Object oriented programming…

[learning-code-ficusoft]

Discuss common design patterns and their implementation in Java.

Introduction

Overview of design patterns in software development.

Why design patterns are crucial for writing scalable, maintainable, and reusable code.

Categories of design patterns:

Creational — Object creation mechanisms.

Structural — Class and object composition.

Behavioral — Communication between objects.

1. Creational Design Patterns

1.1 Singleton Pattern

Ensures that only one instance of a class is created.

Used for logging, database connections, and configuration management.

Implementation:javapublic class Singleton { private static Singleton instance; private Singleton() {} // Private constructor public static synchronized Singleton getInstance() { if (instance == null) { instance = new Singleton(); } return instance; } }

✅ Use Case: Database connection manager.

1.2 Factory Pattern

Provides an interface for creating objects without specifying their exact class.

Implementation:javainterface Shape { void draw(); }class Circle implements Shape { public void draw() { System.out.println("Drawing Circle"); } }class Square implements Shape { public void draw() { System.out.println("Drawing Square"); } }class ShapeFactory { public static Shape getShape(String type) { if (type.equalsIgnoreCase("CIRCLE")) return new Circle(); if (type.equalsIgnoreCase("SQUARE")) return new Square(); return null; } }// Usage Shape shape = ShapeFactory.getShape("CIRCLE"); shape.draw();

✅ Use Case: UI component creation (e.g., buttons, text fields).

1.3 Builder Pattern

Used for constructing complex objects step by step.

Implementation:javaclass Car { private String engine; private int wheels; public static class Builder { private String engine; private int wheels; public Builder setEngine(String engine) { this.engine = engine; return this; } public Builder setWheels(int wheels) { this.wheels = wheels; return this; } public Car build() { return new Car(this); } } private Car(Builder builder) { this.engine = builder.engine; this.wheels = builder.wheels; } }// Usage Car car = new Car.Builder().setEngine("V8").setWheels(4).build();

✅ Use Case: Configuring objects with multiple optional parameters (e.g., HTTP requests).

2. Structural Design Patterns

2.1 Adapter Pattern

Allows incompatible interfaces to work together.

Implementation:javainterface MediaPlayer { void play(String audioType); }class MP3Player implements MediaPlayer { public void play(String audioType) { System.out.println("Playing MP3 file"); } }class MP4Player { void playMP4() { System.out.println("Playing MP4 file"); } }class MediaAdapter implements MediaPlayer { private MP4Player mp4Player; public MediaAdapter() { mp4Player = new MP4Player(); } public void play(String audioType) { if (audioType.equalsIgnoreCase("MP4")) { mp4Player.playMP4(); } } }// Usage MediaPlayer player = new MediaAdapter(); player.play("MP4");

✅ Use Case: Integrating third-party libraries.

2.2 Decorator Pattern

Dynamically adds behavior to objects.

Implementation:javainterface Coffee { String getDescription(); double cost(); }class SimpleCoffee implements Coffee { public String getDescription() { return "Simple Coffee"; } public double cost() { return 5.0; } }class MilkDecorator implements Coffee { private Coffee coffee; public MilkDecorator(Coffee coffee) { this.coffee = coffee; } public String getDescription() { return coffee.getDescription() + ", Milk"; } public double cost() { return coffee.cost() + 1.5; } }// Usage Coffee coffee = new MilkDecorator(new SimpleCoffee()); System.out.println(coffee.getDescription() + " - $" + coffee.cost());

✅ Use Case: Adding toppings to a coffee order in an online coffee shop.

3. Behavioral Design Patterns

3.1 Observer Pattern

Defines a one-to-many dependency between objects.

Implementation:javaimport java.util.ArrayList; import java.util.List;interface Observer { void update(String message); }class Subscriber implements Observer { private String name; public Subscriber(String name) { this.name = name; } public void update(String message) { System.out.println(name + " received: " + message); } }class Publisher { private List<Observer> observers = new ArrayList<>(); public void addObserver(Observer observer) { observers.add(observer); } public void notifyObservers(String message) { for (Observer observer : observers) { observer.update(message); } } }// Usage Publisher newsPublisher = new Publisher(); Observer user1 = new Subscriber("Alice"); Observer user2 = new Subscriber("Bob");newsPublisher.addObserver(user1); newsPublisher.addObserver(user2);newsPublisher.notifyObservers("New article published!");

✅ Use Case: Event-driven notifications (e.g., stock market updates, messaging apps).

3.2 Strategy Pattern

Defines a family of algorithms, encapsulates them, and makes them interchangeable.

Implementation:javainterface PaymentStrategy { void pay(int amount); }class CreditCardPayment implements PaymentStrategy { public void pay(int amount) { System.out.println("Paid $" + amount + " using Credit Card."); } }class PayPalPayment implements PaymentStrategy { public void pay(int amount) { System.out.println("Paid $" + amount + " using PayPal."); } }class PaymentContext { private PaymentStrategy strategy; public void setPaymentStrategy(PaymentStrategy strategy) { this.strategy = strategy; } public void pay(int amount) { strategy.pay(amount); } }// Usage PaymentContext context = new PaymentContext(); context.setPaymentStrategy(new PayPalPayment()); context.pay(100);

✅ Use Case: Payment gateway selection (Credit Card, PayPal, etc.).

Conclusion

Design patterns enhance code reusability, scalability, and maintainability.

Each pattern solves a specific design problem efficiently.

Choosing the right pattern is key to writing better Java applications.

🔹 Next Steps:

Explore Java Design Pattern Libraries like Spring Framework.

Implement patterns in real-world projects.

Experiment with combining multiple patterns.

[technorucs]

Understanding Workflow Automation: A Technical Deep Dive

Today, it has become common to see more and more firms engage workflow automation to manage business operations more efficiently and minimize mistakes in their operations. Workflow automation refers to the execution of tasks, forwarding of information, or carrying out processes without human interaction with the use of technology. In addition to speeding up task completion, the automation approach assists in the delivery of consistent and accurate outcomes in a multitude of business functions.

Defining Workflow Automation:

Workflow automation is the software mechanism of using the automatic flow of tasks, documents, and information across work-related activities based on defined business rules. It aims to perform these tasks independently, improving everyday productivity. 

Key Components of Workflow Automation Systems:

Process Mapping and Modeling: Before being automated, such workflows need to be mapped as a way to identify areas to improve. Each step, each decision point, and the way information flows would be depicted by detailed diagrams created for this very purpose. A standardized method that tools like BPMN provide includes modeling these processes.

Automation Software: As the heart of workflow automation software, this represents the actual running of predefined actions. The latter can be rather simple task scheduling tools or are complex systems to integrate with an array of different applications and database systems. Two examples include the open-source, Java-based jBPM which is a workflow engine that reads business processes represented in BPMN 2.0.

Integration capabilities: This refers to how smoothly the data moves across the applications, especially to automate data retrieval, update, and synchronize between platforms. These integrations usually come preinstalled in many of the latest workflow automation tools or can be used through connectors and APIs.

User Interface and Experience: The use of a non-technical, user-friendly interface means that end users can easily design, monitor, and manage their workflows. Users will intuitively be able to interact with the automation system by drag-and-drop builders, visual flowcharts, and dashboards without reliance on IT.

Technical Mechanisms Behind Workflow Automation:

Workflow automation functions using a mix of pre-configured rules, triggers, and actions:

Triggers:  It means an event or set of circumstances that sets the workflow running. An example might be getting a new email, form submission, or reaching a certain hour in the day.

Conditions: Logical statements that determine the path of the workflow. For instance, if a purchase order is more than a specific amount, then it may need managerial approval.

Actions: The activities carried out in the process. This could include sending notifications, updating databases, or generating reports.

All these components ensure that processes are carried out with precision and efficiency.

Workflow Automation Advanced Concepts

RPA is the use of software to replicate human-like activities within automated systems. While RPA would directly interact at the user level because it works outside of any APIs, using the traditional type of automation depends on APIs.

Artificial Intelligence Integration: Integration of AI in the workflow automation would enable systems to handle unstructured data, take decisions, and learn from patterns. For example, AI may be used in routing incoming emails based on the content analysis for routing them into appropriate departments.

Event-Driven Architecture: This is a design paradigm that handles the production, detection, and reaction to events. The workflow automation event-driven approach ensures systems respond to change in real time, such as changes in the stock level or customer inquiry. This increases agility and responsiveness.

Challenges and Considerations:

While workflow automation offers numerous benefits, it's essential to approach implementation thoughtfully:

Process Optimization: Automating an inefficient process can amplify existing issues. It is very important to optimize workflows before automating them for maximum benefit.

Scalability: With an increase in organizations, the workflow can get complicated. Choosing the right automation tool that scales up with the needs of the organization is necessary to avoid future bottlenecks.

Security: Automated workflows often handle sensitive data. Information will be secure through the means of strong access controls and encryption for the confidentiality and integrity.

Future Trends in Workflow Automation

Workflow automation is changing rapidly:

Hyperautomation is the amalgamation of multiple technologies including RPA, AI, ML, aiming for total automation of the complex business process.

Low Code/No-Code Platforms. Such platforms are empowered to create workflows by end-users with minimum programming skills and therefore democratize automation across an organization.

Intelligent Process Automation: IPA combines the capabilities of AI with RPA to execute even more complex business processes that include decision-making capacities, like fraud detection or handling customer service conversations.

Conclusion:

Workflow automation is basically in the top of technological progress, giving the organization the tool to better its efficiency, accuracy, and adaptability. Based on its technical foundations, businesses will find a way to keep up with the stream of the advance that workflow automation dictates to compete with a fast-changing digital environment.

[cybersuccesss]

Coding with Confidence: The Java Course in Pune at Cyber Success!

Object- Oriented Programming in Java

Introduction:

Java Programming is a high-stage, object-oriented programming language developed by Sun Microsystems (now owned by Oracle) in 1990. It was designed with the intention of being platform-independent, permitting builders to write down code as soon as possible and run it on any tool that helps Java, thanks to its "write once, run anywhere" (WORA) philosophy. 

In the world of software development, Java programming stands as a pillar of strength. At Cyber Success, an IT training institute in Pune, we understand the important role Java plays in shaping modern applications. Our full-stack Java developer course is designed for aspiring developers with the knowledge and skills needed to excel in the dynamic software world.

Object-Oriented Programming (OOP) is a powerful paradigm that permits developers to create modular, reusable, and scalable software program structures. At its core, OOP revolves around the concept of "objects," which can be instances of instructions that encapsulate data (attributes) and conduct (strategies). Java, being an object-oriented language, completely embraces those principles, making it a famous preference for growing a wide variety of applications, from simple desktop tools to complex company structures.

* Applying OOP Principles in Java Programming:

Java Programming's rich support for OOP makes it an ideal choice for implementing these principles. 

* Classes:

In Java, elegance is described by using the usage of the magnificence key-word followed via the elegance call. It consists of information contributors (fields or attributes) and member abilities (techniques) that outline the behavior of items of that beauty. Classes act as templates from which gadgets are created. They encapsulate statistics and behavior right into a single unit, promoting code reusability and maintainability.

* Objects:

Objects are times of commands. They constitute real global entities and might have interaction with every other thru strategies defined via their respective instructions. Each object has its very personal nation (attributes) and behavior (techniques). Objects are created by using the use of the new key phrase observed through the magnificence call, and they could get admission to the participants in their beauty using the dot (.) operator.

* Key Points:

Classes are blueprints or templates for creating devices.

Objects are instances of commands and represent actual-international entities.

Classes encapsulate records (attributes) and behavior (strategies) proper into an unmarried unit.

Objects have states (attributes) and behaviors (strategies) described with the useful resource of their class.

Objects can engage with every other via strategies.

Key Principles of OOP

Encapsulation

Encapsulation is the practice of bundling the facts (attributes) and techniques (features) that operate on the data into an unmarried unit, referred to as a class. 

Inheritance

Inheritance is a mechanism where a brand new class (subclass) can inherit attributes and techniques from a current elegance (superclass). 

Polymorphism

Polymorphism is the potential of objects to take on different forms based totally on the context in which they're used.

Abstraction

Abstraction is the act of hiding the implementation information of a category and only exposing the important capabilities. 

Object-Oriented Programming (OOP) offers many advantages to Java programming, which is a well-known proposition of software application development. 

Here are a few major OOP blessings in Java: 

Modularity: 

OOP allows creators to break down a complex software program into small executable (trainable) modules. Each Grandeur carries its own individual statistics (characteristics) and conduct (patterns), making the code easier to capture, store, and execute. 

Reusability: 

OOP encourages code reusability through the concept of inheritance. In Java, commands can inherit attributes and methods from exception directives, allowing constructors to reuse current code and avoid unnecessary functionality. 

Scalability: 

Scalability is allowed in such a way that OOP developers can define new functionality and capabilities in a software device without impacting the current code. Rewrites can be made to improve device performance without increasing the current codebase. 

Flexibility: 

OOP provides flexibility in software design by enabling developers to translate real international functions into objects. This allows software programs to be developed that better reflect real-world scenarios, making it much easier

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Cyber Success’s Java course in Pune covers the basics, data structures, object-oriented programming, and advanced topics. From high-speed internet to advanced labs, we have everything you need to get interested in technology. You will learn the basics of core Java and its databases (SQL and PL).

Experienced Instructors:

At Cyber Success Our key point in our Java classes in Pune is our trainers. Our trainers are experts in their field with over five years of experience. They have an in-depth knowledge of the Java programming language, enabling them to skillfully explain problematic concepts and provide a practical approach. Our instructors provide a rich blend of knowledge and real-world experience in the classroom to ensure that scholars are not merely educated but given new tips, demanding the tech industry, and guided to deal with situations. At our institute, you will get top-notch Java education in Pune, including possible full exposure to Java.

Hands-on projects: 

At Cyber Success, we believe in studying through practical application. Our Java training in Pune is designed to offer hands-on learning through initiatives, coding 

physical activities, and realistic assignments. This approach allows college students to use their theoretical understanding in real-world scenarios, honing their competencies and getting them ready for the demanding situations of the tech enterprise.

Job Placement Assistance:

We are pleased to announce that, in order for our students to find rewarding positions in the tech industry, we offer100% job placement support. For helping us use the skills they gained in their Java training in Pune to help them find meaningful assignments. 

In addition, we conduct weekly mock interview sessions to prepare students for real job interviews.

Campus drive:

At Cyber Success, we are dedicated to grooming proficient software engineers for the future. Our intention is to turn IT aspirations into reality for people obsessed with coming into this dynamic field. From the start, we have stayed true to our ideas of hard work, honesty, and ardor, eschewing deceptive practices. This commitment, coupled with our team of seasoned trainers, has installed us as the ultimate IT education center in India.

Mastering Object-Oriented Programming in Java is not just about getting to know a programming language; it is approximately embracing a paradigm that shapes the way we think and build software. At Cyber Success, we're dedicated to empowering our students with the understanding and skills they need to emerge as successful full-stack Java developers.

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[tutort-academy]

The 6 High Paying Roles That Will Turn Your Data Skills into Gold!🌟

Hey there, data enthusiasts!

Data science is taking the world by storm, and with it, a plethora of exciting and lucrative career opportunities are opening up. If you're someone who loves numbers, technology, and unraveling mysteries, then data science might just be your calling.

Data Architect:

Imagine being the mastermind behind an organization's data management framework, ensuring that data flows seamlessly across the company. That's what data architects do. They're like data whisperers, understanding the complexities of data and designing systems that make it accessible and useful. To be a data architect, you'll need to be fluent in programming languages like Python, Java, and C++, and have a solid grasp of data modeling tools and predictive modeling.

Data Scientist:

Data scientists are the detectives of the data world, using their scientific skills and algorithms to uncover hidden insights from vast amounts of information. They're like data archaeologists, digging through layers of data to find patterns, trends, and predictions that can change the game. To be a data scientist, you'll need to be proficient in Python, SQL, statistical analysis, and data visualization.

Data Modeler:

Data modelers are the bridge builders between the business world and the data realm. They translate business requirements into data models that computers can understand and use effectively. It's like creating a blueprint for data, ensuring that it's organized, consistent, and ready for action. To be a data modeler, you'll need to master SQL, metadata management, and data modeling tools.

Big Data Engineer:

In the age of big data, big data engineers are the wranglers who manage and analyze massive volumes of information. They're like data cowboys, taming the wild west of data and making it useful. They build data pipelines, design and manage data infrastructures, and handle the ETL (Extract, Transform, Load) process. To be a big data engineer, you'll need to be proficient in Python, SQL, and Java, and have expertise in automation and scripting.

AI Engineer:

Artificial Intelligence (AI) engineers are the masterminds behind intelligent systems and machines that mimic human intelligence to solve complex problems. They're like robot creators, designing and building systems that can learn, adapt, and make decisions on their own. To be an AI engineer, you'll need to be proficient in programming languages, statistics, deep learning, and problem-solving.

Machine Learning Engineer:

Machine Learning (ML) engineers are the automation masters, designing and implementing self-running software that automates predictive models and enables machines to work independently. They're like data magicians, turning data into intelligent tools that can make predictions, optimize processes, and revolutionize industries. To be an ML engineer, you'll need to be proficient in programming languages like Python, Java, and SQL, as well as artificial intelligence and statistics.

The Data Science Adventure Awaits

The field of data science is a thrilling adventure filled with exciting challenges and rewarding opportunities. With the ever-increasing demand for skilled data professionals, these roles are not only in high demand but also command impressive salaries. So, if you're ready to embark on a rewarding career path, consider exploring the world of data science and unleash your inner data ninja!

Remember, data science is not just about numbers and algorithms; it's about creativity, problem-solving, and the ability to make a real impact on the world. So, grab your data toolbox and get ready to dive into the exciting world of data science!

[fission07]

7 Helpful Tricks to Making the Most of Your Java

Certainly! Here are seven helpful tricks to make the most of your Java programming:

Use Java Generics: Generics allow you to write reusable code by creating classes and methods that can work with different data types. This helps in achieving type safety and can prevent runtime errors. By leveraging generics, you can write more flexible and robust code.

Utilize Java Collections: The Java Collections Framework provides a set of interfaces and classes that make it easier to work with groups of objects. By using collections such as ArrayList, LinkedList, HashMap, or TreeSet, you can efficiently store, retrieve, and manipulate data. Understanding and utilizing these collections can greatly simplify your code.

Master Exception Handling: Exception handling is crucial for writing reliable and robust code. By properly handling exceptions, you can gracefully handle unexpected situations and prevent your program from crashing. Learn about different types of exceptions, use try-catch blocks, and make use of the finally block for cleanup tasks.

Apply Multithreading: Java offers robust multithreading capabilities, allowing you to perform multiple tasks concurrently. By using threads, you can improve the performance of your applications and make them more responsive. However, be mindful of synchronization issues and ensure thread safety when accessing shared resources.

Optimize with Java Streams: Java 8 introduced the Stream API, which provides a functional programming style for processing collections of data. Streams allow you to perform powerful operations like filtering, mapping, reducing, and sorting on data elements. By leveraging streams, you can write concise and expressive code while taking advantage of parallel processing when appropriate.

Take Advantage of Java Annotations: Annotations provide metadata about code elements and can be used for various purposes. They can be used for documentation, code generation, configuration, and more. Familiarize yourself with built-in annotations like @Override, @Deprecated, and @SuppressWarnings. Additionally, explore creating custom annotations for specific use cases.

Apply Design Patterns: Design patterns are proven solutions to common programming problems. They provide a structured approach to designing and organizing your code. Familiarize yourself with popular design patterns like Singleton, Observer, Factory, and Builder. Applying these patterns can improve the modularity, maintainability, and scalability of your Java code.

[mydesignsstore]

[javagoalblog]

[andrezcmh602]

How Onerous Could or not it’s To Fully grasp Java? Review By way of Our Java Tutorial

Oracle provides a certification in Java foundations and a more advanced certificates in Oracle Java SE 8 Programmer. Certification with Oracle provides aspiring coders recognized acknowledgement of your expertise. Regardless of the chosen platform, Java is simple to start, but fairly an in depth language to grasp.

How can I learn Java quickly?

Top tips for Learning Java Programming 1. Learn the Basics. As with anything, knowing the basics about Java is the best place to start.

2. Practice Coding. To use the old cliché, practice makes perfect.

3. Set Your Algorithm Carefully.

4. Trace Your Codes on Paper.

5. Read Sources on Java Programming Regularly.

This implies that Java will sometimes have better performance. Explore programs of your pursuits with the high-quality requirements and suppleness you want to take your profession to the next stage. With the Knowledge Map, you will get a holistic image of the educational content material and see how all of the subjects are connected. Tracking your progress will assist you to achieve a greater understanding of what you’ve done and what you proceed to have to study to find a way to spherical out your knowledge.

Java On-line Programs

This design feature permits the builders to construct interactive purposes that may run easily. Platform Independent − Unlike many other programming languages together with C and C++, when Java is compiled, it isn't compiled into platform specific machine, quite into platform impartial byte code. This byte code is distributed over the online and interpreted by the Virtual Machine on whichever platform it is being run on. If you are a beginner at programming or know a programming language but also wish to study Java, then you'll have the ability to enroll on this course. It’s FREE and I guess it always stays free on Udemy and you should be part of this to study Java2021.

Captivate sponsors along with your story and they will be more inclined to fund your learning journey. In this course, you will get hands-on experience in creating video games. Well, this course will educate you the means to create a replica of this annoyingly satisfying sport. If they do not discover answers, this setback incessantly pushes people to quit learning Java . With the elevated variety of resources available, it becomes more difficult to find a finding out resolution that works for all. Simply put, the idea of the greatest way to be taught Java does not exist, but some choices might be the best for specific folks.

The Final Word Playbook On Technology Ability Development

There are hundreds of full, working examples and dozens of lessons. In my early days with Java, I always follow this e-book to be taught and practice. It helped me so much in my approach to turn into a professional Java developer. Another web site with utterly free programs for learning Java.

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In this on-line java programming course free, the lectures and labs go beyond basic syntax by together with best practices and object oriented programming idioms. In addition, the subjects coated helps in getting ready for the Oracle Certified Associate, Java Programmer SE 8 exam . Java is an advanced programming language which is more appropriate for older youngsters to learn.

[alifgiant]

Apakah kita membutuhkan Builder Pattern di bahasa Kotlin?

Mungkin beberapa dari pembaca tidak mengenal pattern ini, tapi pasti pernah menemukannya dalam codebase kalian. Builder pattern dapat diidentifikasi dengan mudah ketika menemukan code seperti dibawah ini.

val human = CreatureBuilder() .addArm(2) .addLeg(2) .addBody() .addHead() .build()

atau juga

val groupLayout = LayoutBuilder() val component1 = Component() val component2 = Component() groupLayout.addComponent(component1) groupLayout.addComponent(component2) val layout = groupLayout.create()

Apakah kita masih membutuhkannya? Jawaban singkatnya, menurut saya, ialah “Tidak”. Jawaban ini mungkin debatable, tapi mari saya coba jelaskan terlebih dahulu.

Dalam bahasa pemograman, kita mengenal istilah fungsi constructor untuk sebuah class. Fungsi tersebut bisa memiliki berbagai parameter, yang kemudian melakukan assignment terhadap properti yang dimiliki class tersebut. Namun, jika sebuah class memiliki sangat banyak properti, besar kemungkinan fungsi constructor ini menjadi sangat panjang, padahal belum tentu kita butuh untuk mengubah semua nilai properti yang dimiliki. Misalnya sebuah kelas manusia seperti dibawah.

class Human { int armCount; int legCount; int eyeCount; int liverCount; int age; double height; double weight; Human( int armCount, int legCount, int eyeCount, int liverCount, int age, double height, double weight ) { } }

Untuk hampir semua manusia, kemungkinan kita hanya perlu mengubah age, height, dan weight. Namun, kita tetap harus memberikan semua nilai yg diminta constructor. Ketika ingin menginisiasi hanya dengan parameter tertentu, kita perlu membuat overload-nya. Itu berarti ada 128 (2^7) kombinasi constructor yang dibutuhkan, belum lagi jika class human bukan milik kita. Sehingga menambah fungsi sebanyak itu sangat tidak mungkin. Akhirnya, munculah Builder pattern ini, kita cukup membuat satu fungsi tambahan untuk semua properti yang dibutuhkan. Berarti, hanya 7 fungsi tambahan.

class HumanBuilder { int armCount = 0; int legCount = 0; int eyeCount = 0; int liverCount = 0; int age = 0; double height = 0; double weight = 0; HumanBuilder addArm(int count); HumanBuilder addLeg(int count); HumanBuilder addEye(int count); HumanBuilder addLiver(int count); HumanBuilder addAge(int count); HumanBuilder addHeight(int count); HumanBuilder addWeight(int count); Human build() { return new Human( armCount, legCount, eyeCount, liverCount, age, height, weight ); } }

Pattern ini membantu kita untuk membuat object dan hanya mengatur properti yang kita inginkan. Lalu membiarkan sisanya bernilai default.

Tapi dengan adanya konsep named parameter dan default value parameter. Semua kesulitan ini menjadi hilang. Dalam bahasa Kotlin, kita cukup menulis..

class Human ( val armCount: Int = 0, val legCount: Int = 0, val eyeCount: Int = 0, val liverCount: Int = 0, val age: Int = 0, val height: Double = 0, val weight: Double = 0 ) // usage fun main() { val a = Human() val b = Human(age = 10) val c = Human(armCount = 2, height = 100) }

Kita cukup mendefinisikan 1 constructor dan kita memiliki semua macam konfigurasi yang kita inginkan, sangat mudah. Hal inilah mengapa wajar bayak programmer "baru", melupakan pattern 1 ini. Karena mareka sudah terbiasa dengan kemudahan. Bukan karena mereka malas, sehingga tidak belajar. Hanya saja perkembangan teknologi memang sudah tidak membutuhkannya.

Tapi bagaimana dengan pattern Director - Builder. Dimana terdapat sebuah common builder yang kemudian di-direct step buildnya oleh director? Jawaban singkatnya, kita bisa beralih ke pattern lain, seperti factory pattern.

Cukup sekian.. ciao~~

[takethiscourse]

FineReport best free data visualization software

Introduction:

While talking about data visualization software, there is a variety of them in the market. But it is not like every software that your eyes see is perfect or has all the features. So precisely, you need to be a little picky while choosing a data visualization software for yourself. Though there is much software available we at takethiscourse.net are going to talk about FineReport data visualization software that is available for anyone to take for free. This free software is quite flexible to integrate with different business systems which make data visualization in other systems easy.

FineReport data visualization software:

FineReport is a Business Intelligence reporting and dashboard software. It is highly suitable for managers, builders, and IT staff. And helps you create dashboards and reports using extraordinary data visualization effects. The software comes with a variety of features that are necessary to know if you want to use this software. So let us get to the features without wasting any time.

Features of FineReport software:

This high-quality software has the following features to offer.

Innovative design patterns:

FineReport designers offer three reporting design modes. With the help of these three designs, you can make impressive reports and dashboards. These reports and dashboards can be made in less than ten minutes. Thus this feature not only lets you make fantastic reports/dashboards but also in minimum time.

Fast data integration:

As finereport supports all mainstream databases. Which then means that you can combine data from different sources easily. Precisely, you can make comprehensive analyses with just one click using the finereport software.

Cool data visualization:

With all the features you get through this software. You also get access to 19 categories and 50 plus styles of self-developed HTML charts. Accompanying cool 3D and dynamic effects as well.

Smart data entry:

The software providing rich controls make it easier for you to input piles of data via forms directly into databases. Using thoughtful functions like data validation and temporary storage, it gets less difficult for you to input data.

Powerful decision-making system:

The web portal that finereport offers for enterprise reporting enables a very secure environment for many reports. Similar is the case with access control and automated reporting, etc which makes the decision-making system quite authentic and powerful.

Easy deployment and integration:

Finereport is known to be a 100% JAVA software. This means that it can be seamlessly integrated with a variety of systems through independent or embedded deployment.

Convenient mobile app:

As the software offers several features that are actually useful. Another one is providing convenient access to monitor business performance through mobile. When you have this option of updating the data and monitoring all the other business performance. It can get really easy for you to work more effectively and thus producing better results.

Large screen & dashboard:

By providing large screens and dashboards, you can without any further trouble track KPIs from many systems. These business systems include ERP, OA, and MES. By tracking KPIs from these different business systems, you can gain insights into these data and then act accordingly.

Conclusion:

Taking a good look at these features will convince you easily to use the Fine report data visualization software. So if you are a manager or a builder or belongs to an IT department, using this free software for making interactive reports and dashboards will be a great idea. So look at these features again and then decide whether this free finereport data visualization software is what you need in your organization or not. In Tableau desktop certification you will learn all aspects that  mentioned above .

[owlterri]

Java making a contact book app

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Community support: Since Java is an older programming language, it has a large community of developers that share valuable insights and knowledge when it comes to Java app development.Ĭhapter #2: Must-Have for Java Mobile DevelopmentĪs discussed in the previous chapter, one of the greatest benefits to using Java is its wealth of open-source tools and libraries.Open-source: Over the years, Java has amassed a great collection of open-source libraries that make java mobile apps much easier to develop.For example, a Java app can serve users a login form while also running background processes. Multi-threaded: With Java you can write applications that conduct multiple tasks in separate threads.High-performing: While Java is an interpreted language, unlike C or C++ which are compiled, it nonetheless is high performing due to its own just-in-time compiler.Secure: Since Java is platform independent and has almost no interaction with the operating system, it makes the language much more secure than other programming languages.

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Platform independent: Since Java programs are first converted to bytecode by the Java compiler, the code can run on any machine that supports the Java runtime environment-making it platform-independent.Everything is an “object” that contains code and data. Object-oriented: Just like with Python, C++, and Ruby, Java is an object-oriented programming language.Java has many features that make it a popular choice among both web and mobile app developers. This language uses syntax that comes from other languages like C and C++. Java was originally created by Sun Microsystems, which has since become Oracle Corporation. In short, it’s always embraced the concept of “write once, run anywhere”. Java is a class-based, object-oriented programming language that was created to carry as few dependencies as possible so the compiled Java code could run on all Java-supported platforms without the need for recompilation. In this article, we’ll review why Java is still many developer’s go-to programming language and how it stacks up against other popular languages for Android, like Kotlin.

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Now, I hope you’ll have fun! Start with Part 1: Scene Builder.Even with the emergence of Kotlin as the new preferred language for Android mobile app development since 2019, Java is still widely used. Then go through the tutorial to understand the code.

fast track: Import the source code for a tutorial part into your IDE (it’s an Eclipse project, but you could use other IDEs like NetBeans with slight modifications).

learn-a-lot track: Create your own JavaFX project from the ground up.

#Java making a contact book app series

This is quite a lot! So, after you you’ve completed this tutorial series you should be ready to build sophisticated applications with JavaFX.

Deploying a JavaFX application as a native package.

Saving the last opened file path in user preferences.

Create a custom popup dialog to edit persons.

Using TableView and reacting to selection changes in the table.

Using ObservableLists for automatically updating the user interface.

Structuring an application with the Model-View-Controller (MVC) pattern.

Using Scene Builder to design the user interface.

This is how the final application will look like: This tutorial walks you through designing, programming and deploying an address application.

#Java making a contact book app update

So I decided to rewrite the JavaFX 2 tutorial for JavaFX 8 (read about what changed in Update to JavaFX 8 - What’s New). Many people all over the world have been reading the tutorial and gave very positive feedback. Back in 2012 I wrote a very detailed JavaFX 2 tutorial series for my students.

[mainslion]

Java making a contact book app

Java making a contact book app how to#

Java making a contact book app update#

Java making a contact book app code#

Java making a contact book app series#

Now, I hope you’ll have fun! Start with Part 1: Scene Builder. Then go through the tutorial to understand the code.

Java making a contact book app code#

fast track: Import the source code for a tutorial part into your IDE (it’s an Eclipse project, but you could use other IDEs like NetBeans with slight modifications). Ionic Frameworks app development platform builds amazing cross-platform mobile, web, and desktop apps all with one shared code base and open-web standards.learn-a-lot track: Create your own JavaFX project from the ground up.

Java making a contact book app series#

This is quite a lot! So, after you you’ve completed this tutorial series you should be ready to build sophisticated applications with JavaFX. It has everything in order to achieve your request.

Java making a contact book app update#

Deploying a JavaFX application as a native package For a simple contact book where you can add,delete,rename and update your contacts in java application with also a GUI interface take a look at this ready cooked code from this website.

Saving the last opened file path in user preferences.

Create a custom popup dialog to edit persons.

Using TableView and reacting to selection changes in the table.

Using ObservableLists for automatically updating the user interface.

Structuring an application with the Model-View-Controller (MVC) pattern.

Using Scene Builder to design the user interface.

This is how the final application will look like: This programm was created for the second semester class Object-oriented Programming and is one of a few such simple java programms neccessary to pass the class Description of project A Java console application that manages an address book where the contacts are saved within an archive. This tutorial walks you through designing, programming and deploying an address application. So I decided to rewrite the JavaFX 2 tutorial for JavaFX 8 (read about what changed in Update to JavaFX 8 - What’s New). Many people all over the world have been reading the tutorial and gave very positive feedback.

Explains the decisions made at each step, gives advice and examples of good practices vs.Back in 2012 I wrote a very detailed JavaFX 2 tutorial series for my students.

Guides the reader through the entire process of developing a high-quality Java ME application.

Based on and geared towards real-life Java ME scenarios.

It uses a single entity class, Contact, that uses the Java API. The book assumes that the reader is already familiar with Java ME and Java applications in general. Hi, I'm creating a Java Swing application that lets the user enter the usual details one would expect in an address book then click the save button. The address-book example application is a simple web application that stores contact data. As this unfolds, the decisions and reasoning behind the code are also presented. From there, the book presents, explains, and helps you to implement all the essential aspects of Java ME development, from the user interface to client-server communication. Unlike other Java ME books out there, which only teach the reader the basics of Java ME by way of a few simple examples, this book presents a broader, eagle-eye picture of a complete Java ME application and what writing one involves.

Java making a contact book app how to#

You'll cover what Java ME is and how it compares to other mobile software platforms, how to properly design and structure Java ME applications, how to think like an experienced Java ME developer, what common problems and pitfalls you may run into, how to optimize your code, and many other key topics. Java ME is the largest mobile software platform in the world, supported by over 80% of all phones. Pro Java ME Apps gives you, the developer, the know-how required for writing sophisticated Java ME applications and for taking advantage of this huge potential market.

[rubygreys]

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