#Java Dependency Injection

[xploreitcorp5]

What is Zero-Copy in Java?

Zero-Copy is a technique that allows data to move between storage and network devices without needing to copy it into the application layer. In traditional I/O methods, you deal with several context switches and memory copies, but Zero-Copy cuts down on that, making things faster. This approach is super helpful for high-performance applications like file servers or video streaming services.

How Zero-Copy Works Internally

To get a grip on Zero-Copy in Java, you need to understand how the Java NIO (New Input/Output) package operates. It lets data flow straight from a file channel to a socket channel through methods like transferTo() and transferFrom(). This avoids using the Java heap and saves CPU cycles, which is really useful for anyone taking a Java Full Stack Developer training Course in Coimbatore .

Benefits of Using Zero-Copy

Some of the main benefits are less CPU usage, reduced latency, and better throughput. When applications need to transfer large files, they can do it more smoothly. This is especially relevant in enterprise-level development, which is a big part of the Java Full Stack Developer Course in Coimbatore. Developers learn how to improve server-client communication using features like Zero-Copy.

Use Cases in the Real World

Zero-Copy is popular in web servers, file servers, and video streaming platforms. Companies that need fast data handling tend to use this method. Students in Java Training in Coimbatore can try out Zero-Copy in lab sessions or projects related to file transfers and socket programming.

 Zero-Copy vs Traditional I/O

With traditional I/O, data gets copied several times—from disk to kernel buffer, then to user space, and finally to the socket buffer. Zero-Copy skips these extra steps. Understanding this difference is key for anyone learning about performance optimization in server-side apps.

 Java NIO and Its Importance

Java NIO was introduced to support scalable and non-blocking I/O tasks. It gives you the tools to implement Zero-Copy. In a Java Course in Coimbatore, you'll learn how NIO helps create fast and efficient applications, an important skill in the Java world.

 Challenges and Limitations

Even though Zero-Copy enhances performance, it’s not the best choice for every situation. It's mainly useful for large file transfers rather than small bits of data. Also, debugging can get tricky because there’s less access at the application level. Students in the Java Full Stack Developer Course learn how to wisely decide when to use Zero-Copy.

 Industry Demand and Career Impact

Knowing about Zero-Copy in Java can help a developer stand out, especially in roles that require high-performance application development. Many tech companies are on the lookout for skills in this area. For those in Java Training in Coimbatore, mastering these topics can lead to great job opportunities in backend and systems development.

Tools and Libraries Supporting Zero-Copy

Besides Java NIO, other frameworks like Netty also support Zero-Copy. These tools are often covered in advanced modules of a Java Course in Coimbatore. Learners can use these libraries to build scalable, high-performance applications, especially for real-time data tasks.

 Conclusion: Master Zero-Copy with the Right Training

So, Zero-Copy in Java is a handy I/O method that's key for modern Java applications. To really get the hang of it, professional training is a must. Enroll in a Java Full Stack Developer Course in Coimbatore or participate in hands-on training at Xplore IT Corp, where they teach practical skills like Zero-Copy and Java NIO.

 FAQs: What is Zero-Copy in Java?

1. What is Zero-Copy in Java and why is it useful?

   Zero-Copy in Java allows for direct data transfer between disk and network without moving it into application memory, which boosts performance.

   2. Which Java package supports Zero-Copy operations?

   Java NIO supports Zero-Copy through methods like FileChannel.transferTo() and transferFrom().

   3. Can I learn Zero-Copy in a Java Course in Coimbatore?

   Yes, good training centers offer detailed modules on Zero-Copy, especially in full stack and advanced Java courses.

4. Is Zero-Copy suitable for all Java applications?

   No, it works best for large file transfers or fast data systems where speed is important.

  5. Where can I get hands-on training in Zero-Copy and Java NIO?

   You can join Xplore IT Corp, recognized for its solid Java Training in Coimbatore and Java Full Stack Developer Course.

[regexkind]

If you ever see me and feel the understandable reaction of wanting to destroy me, just remember: I have to cope with dependency injection in Java. I'm already in hell

[sqlinjection]

LDAP testing & defense

LDAP Injection is an attack used to exploit web based applications that construct LDAP statements based on user input. When an application fails to properly sanitize user input, it's possible to modify LDAP statements through techniques similar to SQL Injection. 

LDAP injection attacks are common due to two factors:

The lack of safer, parameterized LDAP query interfaces

The widespread use of LDAP to authenticate users to systems.

How to test for the issue

During code review

Please check for any queries to the LDAP escape special characters, see here.

Automated Exploitation

Scanner module of tool like OWASP ZAP have module to detect LDAP injection issue.

Remediation

Escape all variables using the right LDAP encoding function

The main way LDAP stores names is based on DN (distinguished name). You can think of this like a unique identifier. These are sometimes used to access resources, like a username.

A DN might look like this

cn=Richard Feynman, ou=Physics Department, dc=Caltech, dc=edu

or

uid=inewton, ou=Mathematics Department, dc=Cambridge, dc=com

There are certain characters that are considered special characters in a DN. The exhaustive list is the following: \ # + < > , ; " = and leading or trailing spaces

Each DN points to exactly 1 entry, which can be thought of sort of like a row in a RDBMS. For each entry, there will be 1 or more attributes which are analogous to RDBMS columns. If you are interested in searching through LDAP for users will certain attributes, you may do so with search filters. In a search filter, you can use standard boolean logic to get a list of users matching an arbitrary constraint. Search filters are written in Polish notation AKA prefix notation.

Example:

(&(ou=Physics)(| (manager=cn=Freeman Dyson,ou=Physics,dc=Caltech,dc=edu) (manager=cn=Albert Einstein,ou=Physics,dc=Princeton,dc=edu) ))

When building LDAP queries in application code, you MUST escape any untrusted data that is added to any LDAP query. There are two forms of LDAP escaping. Encoding for LDAP Search and Encoding for LDAP DN (distinguished name). The proper escaping depends on whether you are sanitising input for a search filter, or you are using a DN as a username-like credential for accessing some resource.

Safe Java for LDAP escaping Example:

public String escapeDN (String name) {

//From RFC 2253 and the / character for JNDI

final char[] META_CHARS = {'+', '"', '<', '>', ';', '/'};

String escapedStr = new String(name);

//Backslash is both a Java and an LDAP escape character,

//so escape it first escapedStr = escapedStr.replaceAll("\\\\\\\\","\\\\\\\\");

//Positional characters - see RFC 2253

escapedStr = escapedStr.replaceAll("\^#","\\\\\\\\#");

escapedStr = escapedStr.replaceAll("\^ | $","\\\\\\\\ ");

for (int i=0 ; i < META_CHARS.length ; i++) {

escapedStr = escapedStr.replaceAll("\\\\" + META_CHARS[i],"\\\\\\\\" + META_CHARS[i]);

}

return escapedStr;

}

[roseliejack123]

From 'Write Once, Run Anywhere' to Strong Security: The Java Advantage

Java, a programming language and technology ecosystem, has solidified its place in the digital world as a versatile and powerful tool. With its "Write Once, Run Anywhere" capability and an extensive array of features, Java has been instrumental in diverse domains, from mobile app development to building enterprise-level systems. This blog explores the strengths of Java, including its portability, robustness, vast ecosystem, and the thriving community that supports it. We will also discuss the value of structured training and the role of ACTE Technologies in nurturing your Java skills. By the end of this journey, you'll have a deep appreciation for the enduring excellence of Java and its role in the ever-evolving tech industry.

The Power and Versatility of Java:

1. Portability and Cross-Platform Compatibility:

Java's claim to fame, "Write Once, Run Anywhere," is not just a marketing slogan. It's a fundamental principle of Java that sets it apart. This feature is made possible by the Java Virtual Machine (JVM), which allows Java code to run on any platform that has a compatible JVM. This portability has been a game-changer, especially in a world where a diverse range of devices and operating systems coexist. Whether it's Windows, macOS, or Linux, Java applications run seamlessly, eliminating compatibility issues and reducing development time and effort.

2. Robust and Secure:

Java's architecture prioritizes robustness and security. It employs strong type checking, automatic memory management (garbage collection), and comprehensive exception handling. These features make Java code less prone to common programming errors and vulnerabilities. For businesses and organizations where system reliability and data security are critical, Java's robustness and built-in security mechanisms make it a go-to choice. Critical systems, such as banking applications, rely on Java to ensure the highest level of protection against errors and threats.

3. Vast Ecosystem:

The Java ecosystem is vast and varied. It includes an extensive library of classes, frameworks, and tools that cater to a wide range of application development needs. Some of the notable components of this ecosystem include:

Java Standard Library: Java's standard library provides a wealth of pre-built classes and utilities for common programming tasks, simplifying development.

Enterprise JavaBeans (EJB): For enterprise-level applications, EJB offers a framework for building scalable, distributed, and transactional components.

JavaServer Pages (JSP) and Servlets: These technologies enable the development of dynamic web applications, making Java a popular choice for web development.

Spring Framework: Spring is a comprehensive framework for building enterprise-level applications, offering features like dependency injection, aspect-oriented programming, and more.

Android Development: Java serves as the primary language for developing Android mobile applications, further expanding its reach.

4. Community and Support:

Java's success is not only due to its technical prowess but also its thriving community of developers, enthusiasts, and experts. This community-driven approach ensures that Java remains relevant, up-to-date, and aligned with industry best practices. Developers can find a wealth of resources, forums, and collaborative environments where they can learn, share knowledge, and solve challenges. The community's collective wisdom and problem-solving spirit have contributed to the continuous evolution of Java.

Java's enduring excellence is a testament to its portability, robustness, vast ecosystem, and strong community support. If you're looking to harness the potential of Java and embark on a journey of learning and mastery, consider exploring the Java training programs offered by ACTE Technologies. With dedication and the right resources, you can leverage Java's capabilities and contribute to the ever-evolving tech landscape.

Java has stood the test of time, offering unparalleled portability, robustness, a rich ecosystem, and a vibrant community. Whether you're building enterprise-level applications or dynamic web services, Java remains a reliable choice. ACTE Technologies' structured training can help you unlock the full potential of Java, enabling you to thrive in the dynamic tech industry.

[iamkenlee-blog]

자바 → 고언어

예전에 고(go) 언어 얘길 한 번 써서 올리긴 했으나 왜 이거에 관심을 두게 됐는지를 빼 먹고 지나친 것이 기록 강박이 있는 사람으로서 영 찜찜해 적어놔야 겠기에. 원인은 자바로 개발하기가 넘 싫었기 때문. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

지난 십 년 넘게 나를 먹여 살린 프로그래밍 언어는 자바(JAVA)였지만, 아이러니하게도 내가 그동안 접한 언어 중에서 제일 싫어하는 거기도 하다.

구구절절 이유를 나열하기보다 총체적으로 한 줄 요약하면, 어릴 적 세운 상가 길바닥에서 처음 배우면서부터 즐겼던 프로그래밍하는 재미를 빼앗아 갔다. 하지만 한국 IT 업계는 자바가 대세라 이걸로 짜야 돈 준다는 데 별 수 있냐, 꾹 참고 했지.

자바는 '객체 지향' 강박이 매우 심한 언어다. 그 시절엔 이 기법이 프로그래머를 구원할 궁극의 진리 같은 느낌으로 여기저기에서 떠받들었던 기억이 내게도 있기 때문에 이해는 함. 그래서 "Hello World" 한 줄 찍으려고 해도 class부터 만들어야 한다.

EJB는 "엔터프라이즈 자바 빈"의 약자로 대규모 웹페이지 만들 때 썼던 거. 복잡하기가 개미지옥 같아, 자바의 대표 흑역사랄 수 있다. 대안으로 스프링(Spring)이라는 프레임웍이 나왔다. 자바 프로그래머들이 무척 좋아했다. 바로 이 부분이 열나 어이없는 거. 스프링은 EJB에 비해 편리하단 것일 뿐, 여전히 짜증 나는 물건이거든.

이 프레임웍의 핵심은 의존성 주입(=Dependency Injection)이라고 한다. 말은 거창하지만 인터페이스(interface)를 써서 코딩하는 짓을 과대 포장한 거. 내가 보기에 여러 개발자 집단 중 유독 자바 쪽 인간들이 허장성세가 심한 편인 거 같다. 이런 점도 거슬려하는 부분 중 하나.

'전자 정부 프레임웍'은 한국 정부가 강제로 정해 놓은 스프링 기반 개발 스펙이다. 이걸 적용해 DB에서 데이터를 꺼내 오려면, Controller → Interface → Implement → DAO 무려 4단계를 거쳐야 한다.

내가 보기엔 규모가 크지 않은 웹페이지의 경우 Controller와 Implement만 있어도 됨. 이 두 개가 꼭 있어야 하는 이유는 Implement에서 트랙잭션이 발생하기 때문에.

DAO는 Implement가 흡수할 수 있기 땜에 진짜 필요 없다. Interface는 애매하다. 만약 비교적 최근 등장한 go언어, 파이썬처럼 덕 타이핑(Duck Typing)을 지원한다면 당연히 처음부터 필요한 게 아니다. 자바가 클래스에 집착하는 언어인 데다 스프링 개발한 놈들이 자랑해 마지않는 의존성 주입을 포기할 수 없어 계속 이렇게 갈 듯.

이 인간들은 자바 ���밀리 중 JSP를 병적으로 싫어한다. 왜 그러는지 이해 가는 면이 있긴 하다. JSP는 (PHP처럼) 그 자체로 하나의 개발툴이기도 하니까. 너무 많은 기능을 내장하고 있다 보니 JSP를 허용하면 MVC(Model - View - Controller)의 토대가 흔들리면서 뒤죽박죽인 코드를 양산할 우려가 큰 거. 그래서 기능을 제한한 JSTL이라는 템플릿으로 뷰(View) 화면을 만들라고 강요한다.

스프링으로 개발할 땐 심지어 컴파일 시간마저 짜증을 유발한다. 사소한 거 하나만 수정해도 프로젝트 전체를 빌드해야 해 결과 나올 때까지 멍때려야 하는 시간 낭비가 크다. 그만큼 개발 속도가 상당히 더디다.

설상가상 가상 머신(=JVM)에서 돌아가기 때문에 느리다. 초기엔 이거 덕분에 컴파일 한 번 해서 여기저기에 다 쓸 수 있다는 명분이 있었지만, 지금은 그 규칙도 사실상 깨져버린 상태. 장점은 느릿느릿하긴 해도 안정적인 거 같긴 하다. 오늘날까지 자바가 살아남은 결정적 요인은 하드웨어 성능이 올라갔기 때문일 듯.

예전에 자바 안에 파이썬 소스를 포함해야 할 일이 있었다. 구글 검색하니 '자바 + 파이썬 = 자이썬'이란 게 있다길래 함 써봤다가 너무너무 느려서 바로 폐기. 그래서 파이썬을 따로 만들어 서버에 저장하고 자바에서 리눅스 쉘 스크립스트를 실행하게 하는 약간 촌스런 방법을 썼다.

자바는 설계 구조상 메모리도 많이 잡아 먹을 수밖에 없다. C처럼 포인터를 지원하지 않기 때문에 함수 호출할 때마다 파라미터와 리턴값을 통째로 복사할 수밖에 없거든. 종종 클래스 전체를 주고받을 때마다 '아, 이게 뭔 뻘짓인가' 자괴감마저 들곤 한다.

그러던 중에 고(Go) 언어를 살펴 보니 진짜 맘에 쏙 들었던 거. 우선 자바와 달리 무척 컴팩트하다. 개발자가 허풍을 안 깐다. 게다가 핵심 인물 중 한 분이 내 닉네임과 같은 켄(=Ken Thompson)이다.

당연히 포인터 있다. 하지만 C/C++처럼 포인터 연산은 지원하지 않는다. 이것이 '버퍼 오버플로우' 같은 버그를 일으키는 원인이란 판단 때문이었을 듯. 진짜 좋다.

고언어는 자바처럼 객체 지향에 집착하지 않는다. 대신 구조체와 인터페이스를 이용해 동일한 성능을 낼 수 있다. 이거는 나도 예전부터 생각했던 거였으나 삼류 개발자라 자신 있게 주장하진 못했는데, 정말로 되는 거였다니…

병렬 처리가 기본인 시대에 태어난 언어답게 쓰레드 처리가 무척 간단하다. 문�� 앞에 'go'만 붙이면 되니까. 다만 자기 손을 떠난 쓰레드를 제대로 관리하지 않으면 먹통이 된다. 그래서 '채널'이란 걸 잘 써야 하던데 아직까진 능숙하지 못하다. 실무에 써 보면 감을 잡을 수 있을 거 같긴 한데.

그러나 고언어가 아무리 좋으면 뭐하냐. 아직까지 한국은 "Hello JAVA World"인걸… -_-;; 하루속히 고언어가 쭉쭉 성장했으면 좋겠다. 그럼 고언어 전문가인 척 구라까고 돈 받으면서 공부해야지.

[java-full-stack-izeon]

java full stack

A Java Full Stack Developer is proficient in both front-end and back-end development, using Java for server-side (backend) programming. Here's a comprehensive guide to becoming a Java Full Stack Developer:

1. Core Java

Fundamentals: Object-Oriented Programming, Data Types, Variables, Arrays, Operators, Control Statements.

Advanced Topics: Exception Handling, Collections Framework, Streams, Lambda Expressions, Multithreading.

2. Front-End Development

HTML: Structure of web pages, Semantic HTML.

CSS: Styling, Flexbox, Grid, Responsive Design.

JavaScript: ES6+, DOM Manipulation, Fetch API, Event Handling.

Frameworks/Libraries:

React: Components, State, Props, Hooks, Context API, Router.

Angular: Modules, Components, Services, Directives, Dependency Injection.

Vue.js: Directives, Components, Vue Router, Vuex for state management.

3. Back-End Development

Java Frameworks:

Spring: Core, Boot, MVC, Data JPA, Security, Rest.

Hibernate: ORM (Object-Relational Mapping) framework.

Building REST APIs: Using Spring Boot to build scalable and maintainable REST APIs.

4. Database Management

SQL Databases: MySQL, PostgreSQL (CRUD operations, Joins, Indexing).

NoSQL Databases: MongoDB (CRUD operations, Aggregation).

5. Version Control/Git

Basic Git commands: clone, pull, push, commit, branch, merge.

Platforms: GitHub, GitLab, Bitbucket.

6. Build Tools

Maven: Dependency management, Project building.

Gradle: Advanced build tool with Groovy-based DSL.

7. Testing

Unit Testing: JUnit, Mockito.

Integration Testing: Using Spring Test.

8. DevOps (Optional but beneficial)

Containerization: Docker (Creating, managing containers).

CI/CD: Jenkins, GitHub Actions.

Cloud Services: AWS, Azure (Basics of deployment).

9. Soft Skills

Problem-Solving: Algorithms and Data Structures.

Communication: Working in teams, Agile/Scrum methodologies.

Project Management: Basic understanding of managing projects and tasks.

Learning Path

Start with Core Java: Master the basics before moving to advanced concepts.

Learn Front-End Basics: HTML, CSS, JavaScript.

Move to Frameworks: Choose one front-end framework (React/Angular/Vue.js).

Back-End Development: Dive into Spring and Hibernate.

Database Knowledge: Learn both SQL and NoSQL databases.

Version Control: Get comfortable with Git.

Testing and DevOps: Understand the basics of testing and deployment.

Resources

Books:

Effective Java by Joshua Bloch.

Java: The Complete Reference by Herbert Schildt.

Head First Java by Kathy Sierra & Bert Bates.

Online Courses:

Coursera, Udemy, Pluralsight (Java, Spring, React/Angular/Vue.js).

FreeCodeCamp, Codecademy (HTML, CSS, JavaScript).

Documentation:

Official documentation for Java, Spring, React, Angular, and Vue.js.

Community and Practice

GitHub: Explore open-source projects.

Stack Overflow: Participate in discussions and problem-solving.

Coding Challenges: LeetCode, HackerRank, CodeWars for practice.

By mastering these areas, you'll be well-equipped to handle the diverse responsibilities of a Java Full Stack Developer.

visit https://www.izeoninnovative.com/izeon/

[cabpthedev]

Battle of the Java Web Servers: Which One Reigns Supreme?

The world of web servers is vast and ever-evolving, with new players entering the scene every now and then. For developers seeking the perfect Java web server, it can be quite a daunting task to find the right fit. Fear not, for we have done the research for you and compiled a comparison of six popular Java web servers: Spring HTTP, Micronaut, ActiveJ, Javalin, Vert.x, and Ktor. So, let's dive into this short summary of web java web servers (view the full article)!

Spring HTTP: The Full-Fledged Champion Spring HTTP is not just a web server; it's an entire framework in itself. With support for HTML templating, dependency injection, easy ORM integration, and even GraphQL, Spring HTTP is a powerful choice for building robust web applications. However, it does come with its fair share of disadvantages. It requires the use of Reactive Streams for most threading tasks and struggles to integrate with existing code bases. Additionally, Spring doesn't boast the best performance and consumes more memory compared to other options.

Micronaut: A Microservices Marvel… with Some Drawbacks Micronaut offers an impressive set of features specifically tailored for microservices development. It aims to save developers time by providing a complete microservices framework. However, it falls short in terms of performance, resource usage, and community support when compared to the mighty Spring. Its functionality is also somewhat limited, making it less appealing for more complex projects.

ActiveJ: Lightweight, Modular, and Performance-Oriented For those seeking top-notch performance and a seamless integration with existing code bases, ActiveJ is a strong contender. With its included serialization and ease of support for raw TCP sockets, ActiveJ shines in the performance arena. However, it does have a steeper learning curve due to its new concepts and lacks cross-language compatibility with its serializer.

Javalin: Simple Yet Powerful, with Kotlin in Mind Javalin is an attractive option for developers looking for an easy-to-use web server that integrates well with existing code bases. With its completable futures for threading support and built-in WebSocket server functionality, Javalin is a reasonable choice. However, it lacks some advanced features and feels more targeted towards Kotlin developers, making it a bit less versatile in java heavy environments.

Vert.x: A Complete, Powerful Solution Vert.x offers a feature set similar to Javalin but with a stronger focus on enterprise applications. With its unique threading system, built-in event bus, and extensive support for websockets, TCP sockets, and datagram sockets, Vert.x is a powerful all in one solution for your web server needs, but without the baggage of spring. On top of all of that, Vert.x handles larger code bases well and offers better performance compared with Javalin. However, its Kotlin support is not as extensive, and integrating Vert.x threads with other tools may pose some challenges, but is easily possible.

Ktor: The Kotlin Enthusiast's Choice As the name suggests, Ktor is all about Kotlin. With native KotlinX.Coroutines support and simplicity at its core, Ktor makes it a breeze for Kotlin enthusiasts to build web applications. It even doubles as an HTTP/websocket client for added convenience. However, Ktor falls behind in terms of performance, lacks the versatility of supporting other languages, and may come with additional charges for accessing all its features in certain IDEs.

In conclusion, the battle of Java web servers is a fierce one, with each contender offering its own set of advantages and disadvantages. Spring HTTP stands out as a full-fledged framework with extensive features, while ActiveJ excels in performance and modularity. Javalin and Vert.x provide ease of use and enterprise-level capabilities, with javalin being more Kotlin-centric, and Vert.x being more complete and suitable for larger projects. Micronaut is aimed at microservices but has room for improvement in terms of performance and community support. Lastly, Ktor caters to die-hard Kotlin fans but sacrifices performance and language versatility.

Ultimately, the choice of a web server boils down to your specific needs and preferences. So, strap on your developer hat, analyze your project requirements, and choose the web server that suits you best. Happy coding!

View the full article on for free, on Medium

[this-week-in-rust]

This Week in Rust 510

Hello and welcome to another issue of This Week in Rust! Rust is a programming language empowering everyone to build reliable and efficient software. This is a weekly summary of its progress and community. Want something mentioned? Tag us at @ThisWeekInRust on Twitter or @ThisWeekinRust on mastodon.social, or send us a pull request. Want to get involved? We love contributions.

This Week in Rust is openly developed on GitHub and archives can be viewed at this-week-in-rust.org. If you find any errors in this week's issue, please submit a PR.

Updates from Rust Community

Official

Announcing Rust 1.72.0

Change in Guidance on Committing Lockfiles

Cargo changes how arrays in config are merged

Seeking help for initial Leadership Council initiatives

Leadership Council Membership Changes

Newsletters

This Week in Ars Militaris VIII

Project/Tooling Updates

rust-analyzer changelog #196

The First Stable Release of a Memory Safe sudo Implementation

We're open-sourcing the library that powers 1Password's ability to log in with a passkey

ratatui 0.23.0 is released! (official successor of tui-rs)

Zellij 0.38.0: session-manager, plugin infra, and no more offensive session names

Observations/Thoughts

The fastest WebSocket implementation

Rust Malware Staged on Crates.io

ESP32 Standard Library Embedded Rust: SPI with the MAX7219 LED Dot Matrix

A JVM in Rust part 5 - Executing instructions

Compiling Rust for .NET, using only tea and stubbornness!

Ad-hoc polymorphism erodes type-safety

How to speed up the Rust compiler in August 2023

This isn't the way to speed up Rust compile times

Rust Cryptography Should be Written in Rust

Dependency injection in Axum handlers. A quick tour

Best Rust Web Frameworks to Use in 2023

From tui-rs to Ratatui: 6 Months of Cooking Up Rust TUIs

[video] Rust 1.72.0

[video] Rust 1.72 Release Train

Rust Walkthroughs

[series] Distributed Tracing in Rust, Episode 3: tracing basics

Use Rust in shell scripts

A Simple CRUD API in Rust with Cloudflare Workers, Cloudflare KV, and the Rust Router

[video] base64 crate: code walkthrough

Miscellaneous

Interview with Rust and operating system Developer Andy Python

Leveraging Rust in our high-performance Java database

Rust error message to fix a typo

[video] The Builder Pattern and Typestate Programming - Stefan Baumgartner - Rust Linz January 2023

[video] CI with Rust and Gitlab Selfhosting - Stefan Schindler - Rust Linz July 2023

Crate of the Week

This week's crate is dprint, a fast code formatter that formats Markdown, TypeScript, JavaScript, JSON, TOML and many other types natively via Wasm plugins.

Thanks to Martin Geisler for the suggestion!

Please submit your suggestions and votes for next week!

Call for Participation

Always wanted to contribute to open-source projects but did not know where to start? Every week we highlight some tasks from the Rust community for you to pick and get started!

Some of these tasks may also have mentors available, visit the task page for more information.

Hyperswitch - add domain type for client secret

Hyperswitch - deserialization error exposes sensitive values in the logs

Hyperswitch - move redis key creation to a common module

mdbook-i18n-helpers - Write tool which can convert translated files back to PO

mdbook-i18n-helpers - Package a language selector

mdbook-i18n-helpers - Add links between translations

Comprehensive Rust - Link to correct line when editing a translation

Comprehensive Rust - Track the number of times the redirect pages are visited

RustQuant - Jacobian and Hessian matrices support.

RustQuant - improve Graphviz plotting of autodiff computational graphs.

RustQuant - bond pricing implementation.

RustQuant - implement cap/floor pricers.

RustQuant - Implement Asian option pricers.

RustQuant - Implement American option pricers.

release-plz - add ability to mark Gitea/GitHub release as draft

zerocopy - CI step "Set toolchain version" is flaky due to network timeouts

zerocopy - Implement traits for tuple types (and maybe other container types?)

zerocopy - Prevent panics statically

zerocopy - Add positive and negative trait impl tests for SIMD types

zerocopy - Inline many trait methods (in zerocopy and in derive-generated code)

datatest-stable - Fix quadratic performance with nextest

Ockam - Use a user-friendly name for the shared services to show it in the tray menu

Ockam - Rename the Port to Address and support such format

Ockam - Ockam CLI should gracefully handle invalid state when initializing

css-inline - Update cssparser & selectors

css-inline - Non-blocking stylesheet resolving

css-inline - Optionally remove all class attributes

If you are a Rust project owner and are looking for contributors, please submit tasks here.

Updates from the Rust Project

366 pull requests were merged in the last week

reassign sparc-unknown-none-elf to tier 3

wasi: round up the size for aligned_alloc

allow MaybeUninit in input and output of inline assembly

allow explicit #[repr(Rust)]

fix CFI: f32 and f64 are encoded incorrectly for cross-language CFI

add suggestion for some #[deprecated] items

add an (perma-)unstable option to disable vtable vptr

add comment to the push_trailing function

add note when matching on tuples/ADTs containing non-exhaustive types

add support for ptr::writes for the invalid_reference_casting lint

allow overwriting ExpnId for concurrent decoding

avoid duplicate large_assignments lints

contents of reachable statics is reachable

do not emit invalid suggestion in E0191 when spans overlap

do not forget to pass DWARF fragment information to LLVM

ensure that THIR unsafety check is done before stealing it

emit a proper diagnostic message for unstable lints passed from CLI

fix races conditions with SyntaxContext decoding

fix waiting on a query that panicked

improve note for the invalid_reference_casting lint

include compiler flags when you break rust;

load include_bytes! directly into an Lrc

make Sharded an enum and specialize it for the single thread case

make rustc_on_unimplemented std-agnostic for alloc::rc

more precisely detect cycle errors from type_of on opaque

point at type parameter that introduced unmet bound instead of full HIR node

record allocation spans inside force_allocation

suggest mutable borrow on read only for-loop that should be mutable

tweak output of to_pretty_impl_header involving only anon lifetimes

use the same DISubprogram for each instance of the same inlined function within a caller

walk through full path in point_at_path_if_possible

warn on elided lifetimes in associated constants (ELIDED_LIFETIMES_IN_ASSOCIATED_CONSTANT)

make RPITITs capture all in-scope lifetimes

add stable for Constant in smir

add generics_of to smir

add smir predicates_of

treat StatementKind::Coverage as completely opaque for SMIR purposes

do not convert copies of packed projections to moves

don't do intra-pass validation on MIR shims

MIR validation: reject in-place argument/return for packed fields

disable MIR SROA optimization by default

miri: automatically start and stop josh in rustc-pull/push

miri: fix some bad regex capture group references in test normalization

stop emitting non-power-of-two vectors in (non-portable-SIMD) codegen

resolve: stop creating NameBindings on every use, create them once per definition instead

fix a pthread_t handle leak

when terminating during unwinding, show the reason why

avoid triple-backtrace due to panic-during-cleanup

add additional float constants

add ability to spawn Windows process with Proc Thread Attributes | Take 2

fix implementation of Duration::checked_div

hashbrown: allow serializing HashMaps that use a custom allocator

hashbrown: change & to &mut where applicable

hashbrown: simplify Clone by removing redundant guards

regex-automata: fix incorrect use of Aho-Corasick's "standard" semantics

cargo: Very preliminary MSRV resolver support

cargo: Use a more compact relative-time format

cargo: Improve TOML parse errors

cargo: add support for target.'cfg(..)'.linker

cargo: config: merge lists in precedence order

cargo: create dedicated unstable flag for asymmetric-token

cargo: set MSRV for internal packages

cargo: improve deserialization errors of untagged enums

cargo: improve resolver version mismatch warning

cargo: stabilize --keep-going

cargo: support dependencies from registries for artifact dependencies, take 2

cargo: use AND search when having multiple terms

rustdoc: add unstable --no-html-source flag

rustdoc: rename typedef to type alias

rustdoc: use unicode-aware checks for redundant explicit link fastpath

clippy: new lint: implied_bounds_in_impls

clippy: new lint: reserve_after_initialization

clippy: arithmetic_side_effects: detect division by zero for Wrapping and Saturating

clippy: if_then_some_else_none: look into local initializers for early returns

clippy: iter_overeager_cloned: detect .cloned().all() and .cloned().any()

clippy: unnecessary_unwrap: lint on .as_ref().unwrap()

clippy: allow trait alias DefIds in implements_trait_with_env_from_iter

clippy: fix "derivable_impls: attributes are ignored"

clippy: fix tuple_array_conversions lint on nightly

clippy: skip float_cmp check if lhs is a custom type

rust-analyzer: diagnostics for 'while let' loop with label in condition

rust-analyzer: respect #[allow(unused_braces)]

Rust Compiler Performance Triage

A fairly quiet week, with improvements exceeding a small scattering of regressions. Memory usage and artifact size held fairly steady across the week, with no regressions or improvements.

Triage done by @simulacrum. Revision range: d4a881e..cedbe5c

2 Regressions, 3 Improvements, 2 Mixed; 0 of them in rollups 108 artifact comparisons made in total

Full report here

Approved RFCs

Changes to Rust follow the Rust RFC (request for comments) process. These are the RFCs that were approved for implementation this week:

Create a Testing sub-team

Final Comment Period

Every week, the team announces the 'final comment period' for RFCs and key PRs which are reaching a decision. Express your opinions now.

RFCs

No RFCs entered Final Comment Period this week.

Tracking Issues & PRs

[disposition: merge] Stabilize PATH option for --print KIND=PATH

[disposition: merge] Add alignment to the NPO guarantee

New and Updated RFCs

[new] Special-cased performance improvement for Iterator::sum on Range<u*> and RangeInclusive<u*>

[new] Cargo Check T-lang Policy

Call for Testing

An important step for RFC implementation is for people to experiment with the implementation and give feedback, especially before stabilization. The following RFCs would benefit from user testing before moving forward:

No RFCs issued a call for testing this week.

If you are a feature implementer and would like your RFC to appear on the above list, add the new call-for-testing label to your RFC along with a comment providing testing instructions and/or guidance on which aspect(s) of the feature need testing.

Upcoming Events

Rusty Events between 2023-08-30 - 2023-09-27 🦀

Virtual

2023-09-05 | Virtual (Buffalo, NY, US) | Buffalo Rust Meetup

Buffalo Rust User Group, First Tuesdays

2023-09-05 | Virtual (Munich, DE) | Rust Munich

Rust Munich 2023 / 4 - hybrid

2023-09-06 | Virtual (Indianapolis, IN, US) | Indy Rust

Indy.rs - with Social Distancing

2023-09-12 - 2023-09-15 | Virtual (Albuquerque, NM, US) | RustConf

RustConf 2023

2023-09-12 | Virtual (Dallas, TX, US) | Dallas Rust

Second Tuesday

2023-09-13 | Virtual (Boulder, CO, US) | Boulder Elixir and Rust

Monthly Meetup

2023-09-13 | Virtual (Cardiff, UK)| Rust and C++ Cardiff

The unreasonable power of combinator APIs

2023-09-14 | Virtual (Nuremberg, DE) | Rust Nuremberg

Rust Nürnberg online

2023-09-20 | Virtual (Vancouver, BC, CA) | Vancouver Rust

Rust Study/Hack/Hang-out

2023-09-21 | Virtual (Charlottesville, NC, US) | Charlottesville Rust Meetup

Crafting Interpreters in Rust Collaboratively

2023-09-21 | Lehi, UT, US | Utah Rust

Real Time Multiplayer Game Server in Rust

2023-09-21 | Virtual (Linz, AT) | Rust Linz

Rust Meetup Linz - 33rd Edition

2023-09-25 | Virtual (Dublin, IE) | Rust Dublin

How we built the SurrealDB Python client in Rust.

Asia

2023-09-06 | Tel Aviv, IL | Rust TLV

RustTLV @ Final - September Edition

Europe

2023-08-30 | Copenhagen, DK | Copenhagen Rust Community

Rust metup #39 sponsored by Fermyon

2023-08-31 | Augsburg, DE | Rust Meetup Augsburg

Augsburg Rust Meetup #2

2023-09-05 | Munich, DE + Virtual | Rust Munich

Rust Munich 2023 / 4 - hybrid

2023-09-14 | Reading, UK | Reading Rust Workshop

Reading Rust Meetup at Browns

2023-09-19 | Augsburg, DE | Rust - Modern Systems Programming in Leipzig

Logging and tracing in Rust

2023-09-20 | Aarhus, DK | Rust Aarhus

Rust Aarhus - Rust and Talk at Concordium

2023-09-21 | Bern, CH | Rust Bern

Third Rust Bern Meetup

North America

2023-09-05 | Chicago, IL, US | Deep Dish Rust

Rust Happy Hour

2023-09-06 | Bellevue, WA, US | The Linux Foundation

Rust Global

2023-09-12 - 2023-09-15 | Albuquerque, NM, US + Virtual | RustConf

RustConf 2023

2023-09-12 | New York, NY, US | Rust NYC

A Panel Discussion on Thriving in a Rust-Driven Workplace

2023-09-12 | Minneapolis, MN, US | Minneapolis Rust Meetup

Minneapolis Rust Meetup Happy Hour

2023-09-14 | Seattle, WA, US | Seattle Rust User Group Meetup

Seattle Rust User Group - August Meetup

2023-09-19 | San Francisco, CA, US | San Francisco Rust Study Group

Rust Hacking in Person

2023-09-21 | Nashville, TN, US | Music City Rust Developers

Rust on the web! Get started with Leptos

2023-09-26 | Pasadena, CA, US | Pasadena Thursday Go/Rust

Monthly Rust group

2023-09-27 | Austin, TX, US | Rust ATX

Rust Lunch - Fareground

Oceania

2023-09-13 | Perth, WA, AU | Rust Perth

Rust Meetup 2: Lunch & Learn

2023-09-19 | Christchurch, NZ | Christchurch Rust Meetup Group

Christchurch Rust meetup meeting

2023-09-26 | Canberra, ACT, AU | Rust Canberra

September Meetup

If you are running a Rust event please add it to the calendar to get it mentioned here. Please remember to add a link to the event too. Email the Rust Community Team for access.

Jobs

Please see the latest Who's Hiring thread on r/rust

Quote of the Week

In [other languages], I could end up chasing silly bugs and waste time debugging and tracing to find that I made a typo or ran into a language quirk that gave me an unexpected nil pointer. That situation is almost non-existent in Rust, it's just me and the problem. Rust is honest and upfront about its quirks and will yell at you about it before you have a hard to find bug in production.

– dannersy on Hacker News

Thanks to Kyle Strand for the suggestion!

Please submit quotes and vote for next week!

This Week in Rust is edited by: nellshamrell, llogiq, cdmistman, ericseppanen, extrawurst, andrewpollack, U007D, kolharsam, joelmarcey, mariannegoldin, bennyvasquez.

Email list hosting is sponsored by The Rust Foundation

Discuss on r/rust

[qtree2009]

Java Full Stack Training Institute in Saravanampatti – Qtree Technologies

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6. Spring Framework & Spring Boot

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7. Database

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🌐 Website: www.qtreetechnologies.in

[softcrayonsblog]

Advanced Java Training: Become a Skilled Java Developer with Softcrayons Tech Solution

Advanced Java training | Advance java training course | Java training institute 

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[poleznotut]

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Получите полное понимание процессов, научитесь строить надёжные фреймворки, интегрировать всё в CI/CD и автоматизировать тестирование сложных веб-систем.

👇 Переходите по ссылке и начните обучение уже сегодня!

🌐 Java Playwright: https://stepik.org/course/233592/promo

[myinternetsites]

🎓 Автоматизация тестирования с Java Playwright — Полный курс на Stepik

🚀 Хотите прокачать свои навыки в автоматизации и стать востребованным специалистом на рынке?

Освойте Playwright на Java и создавайте мощные, масштабируемые тестовые решения с нуля!

💡 Что вас ждёт в курсе:

✅ Полноценное обучение работе с Playwright: от навигации, кликов и форм до работы с REST API и WebSocket

✅ Ускорение автотестов в 4 раза, параллельный запуск и Screenplay Pattern

✅ Интеграция с Docker, CI/CD, Spring Boot, Allure (со скриншотами и видео)

✅ Структурирование фреймворка: продвинутый Page Object Model + Dependency Injection

✅ Поддержка flaky-тестов, кастомные отчеты, артефакты, уведомления

✅ Комбо-тесты UI + API, работа с окружениями и тестовыми конфигурациями

✅ Практика на 6 реальных проектах для портфолио

✅ Сертификат об окончании + решение кейсов уровня Senior

📦 6 мощных проектов в портфолио:

1⃣ Автотесты для интернет-магазина

2⃣ SPA-тестирование (Single Page Application)

3⃣ Интеграция с Docker

4⃣ SPA + WebSocket: тесты в реальном времени

5⃣ E2E-тесты для сайта

6⃣ Тестирование Spring Boot API

🎯 Для кого курс:

🔹 Опытные QA Automation-инженеры

🔹 Junior QA, которые хотят перейти в автоматизацию

🔹 Разработчики, желающие выстроить стабильную систему тестирования

🔹 Все, кто хочет выйти на новый уровень в тестировании

📈 Результат прохождения курса:

Повышение квалификации и дохода

Новые карьерные возможности

Уверенность в своей экспертизе

🛠 Автоматизация, которая работает!

Получите полное понимание процессов, научитесь строить надёжные фреймворки, интегрировать всё в CI/CD и автоматизировать тестирование сложных веб-систем.

👇 Переходите по ссылке и начните обучение уже сегодня!

🌐 Java Playwright: https://stepik.org/course/233592/promo

[interobzor]

🎓 Автоматизация тестирования с Java Playwright — Полный курс на Stepik

�� Хотите прокачать свои навыки в автоматизации и стать востребованным специалистом на рынке?

Освойте Playwright на Java и создавайте мощные, масштабируемые тестовые решения с нуля!

💡 Что вас ждёт в курсе:

✅ Полноценное обучение работе с Playwright: от навигации, кликов и форм до работы с REST API и WebSocket

✅ Ускорение автотестов в 4 раза, параллельный запуск и Screenplay Pattern

✅ Интеграция с Docker, CI/CD, Spring Boot, Allure (со скриншотами и видео)

✅ Структурирование фреймворка: продвинутый Page Object Model + Dependency Injection

✅ Поддержка flaky-тестов, кастомные отчеты, артефакты, уведомления

✅ Комбо-тесты UI + API, работа с окружениями и тестовыми конфигурациями

✅ Практика на 6 реальных проектах для портфолио

✅ Сертификат об окончании + решение кейсов уровня Senior

📦 6 мощных проектов в портфолио:

1⃣ Автотесты для интернет-магазина

2⃣ SPA-тестирование (Single Page Application)

3⃣ Интеграция с Docker

4⃣ SPA + WebSocket: тесты в реальном времени

5⃣ E2E-тесты для сайта

6⃣ Тестирование Spring Boot API

🎯 Для кого курс:

🔹 Опытные QA Automation-инженеры

🔹 Junior QA, которые хотят перейти в автоматизацию

🔹 Разработчики, желающие выстроить стабильную систему тестирования

🔹 Все, кто хочет выйти на новый уровень в тестировании

📈 Результат прохождения курса:

Повышение квалификации и дохода

Новые карьерные возможности

Уверенность в своей экспертизе

🛠 Автоматизация, которая работает!

Получите полное понимание процессов, научитесь строить надёжные фреймворки, интегрировать всё в CI/CD и автоматизировать тестирование сложных веб-систем.

👇 Переходите по ссылке и начните обучение уже сегодня!

🌐 Java Playwright: https://stepik.org/course/233592/promo

[internetsites]

🎓 Автоматизация тестирования с Java Playwright — Полный курс на Stepik

🚀 Хотите прокачать свои навыки в автоматизации и стать востребованным специалистом на рынке?

Освойте Playwright на Java и создавайте мощные, масштабируемые тестовые решения с нуля!

💡 Что вас ждёт в курсе:

✅ Полноценное обучение работе с Playwright: от навигации, кликов и форм до работы с REST API и WebSocket

✅ Ускорение автотестов в 4 раза, параллельный запуск и Screenplay Pattern

✅ Интеграция с Docker, CI/CD, Spring Boot, Allure (со скриншотами и видео)

✅ Структурирование фреймворка: продвинутый Page Object Model + Dependency Injection

✅ Поддержка flaky-тестов, кастомные отчеты, артефакты, уведомления

✅ Комбо-тесты UI + API, работа с окружениями и тестовыми конфигурациями

✅ Практика на 6 реальных проектах для портфолио

✅ Сертификат об окончании + решение кейсов уровня Senior

📦 6 мощных проектов в портфолио:

1⃣ Автотесты для интернет-магазина

2⃣ SPA-тестирование (Single Page Application)

3⃣ Интеграция с Docker

4⃣ SPA + WebSocket: тесты в реальном времени

5⃣ E2E-тесты для сайта

6⃣ Тестирование Spring Boot API

🎯 Для кого курс:

🔹 Опытные QA Automation-инженеры

🔹 Junior QA, которые хотят перейти в автоматизацию

🔹 Разработчики, желающие выстроить стабильную систему тестирования

🔹 Все, кто хочет выйти на новый уровень в тестировании

📈 Результат прохождения курса:

Повышение квалификации и дохода

Новые карьерные возможности

Уверенность в своей экспертизе

🛠 Автоматизация, которая работает!

Получите полное понимание процессов, научитесь строить надёжные фреймворки, интегрировать всё в CI/CD и автоматизировать тестирование сложных веб-систем.

👇 Переходите по ссылке и начните обучение уже сегодня!

🌐 Java Playwright: https://stepik.org/course/233592/promo

[freshyblog07]

Top Spring Boot Interview Questions and Answers (2025 Edition)

Spring Boot has become the standard for building production-ready Java applications with minimal configuration. If you're preparing for a backend or full-stack developer role, having a good grip on common Spring Boot interview questions is a must.

In this post, we’ll walk you through the most frequently asked Spring Boot questions to help you ace your next interview.

📘 Want a complete list with detailed answers and code examples? 👉 Read the full guide here: Spring Boot Interview Questions – Freshy Blog

🔹 What is Spring Boot?

Spring Boot is an extension of the Spring framework that simplifies the development of Java-based applications by providing auto-configuration, embedded servers, and production-ready defaults.

🔸 Common Spring Boot Interview Questions

1. What are the main features of Spring Boot?

Auto Configuration

Starter Dependencies

Spring Boot CLI

Actuator

Embedded Web Servers (Tomcat, Jetty)

2. What is the difference between Spring and Spring Boot?

Spring Boot is a rapid application development framework built on top of Spring. It eliminates boilerplate configuration and helps developers get started quickly.

🔸 Intermediate Spring Boot Questions

3. What are Starter dependencies?

Starter dependencies are a set of convenient dependency descriptors that you can include in your application. For example:

<dependency>

  <groupId>org.springframework.boot</groupId>

  <artifactId>spring-boot-starter-web</artifactId>

</dependency>

4. What is Spring Boot Actuator?

Spring Boot Actuator provides production-ready features like monitoring, metrics, and health checks of your application.

🔹 Advanced Spring Boot Questions

5. How does auto-configuration work in Spring Boot?

Spring Boot automatically configures your application based on the dependencies you have in your classpath using @EnableAutoConfiguration.

6. How can you secure a Spring Boot application?

You can use spring-boot-starter-security and configure it with annotations like @EnableWebSecurity, along with custom authentication and authorization logic.

🔍 More Questions Covered in the Full Guide:

What are Profiles in Spring Boot?

What is the role of application.properties or application.yml?

How to implement exception handling in Spring Boot?

How to integrate Spring Boot with databases like MySQL, PostgreSQL?

👉 Get full coverage with examples, tips, and best practices: 🔗 https://www.freshyblog.com/spring-boot-interview-questions/

✅ Quick Tips for Spring Boot Interviews

Understand how dependency injection works

Be familiar with REST API development in Spring Boot

Practice building microservices

Explore Spring Security basics

Review annotations like @RestController, @Service, @Component, and @Repository

Final Thoughts

Mastering these Spring Boot interview questions can give you a solid edge in any technical interview. As Java continues to be a dominant backend language, Spring Boot remains a vital tool in the modern developer’s toolkit.

📘 Want to dive deeper? 👉 Visit the full interview question guide here: Spring Boot Interview Questions – Freshy Blog

[react-js-state-1]

Why Java Is Still the King in 2025—and How Cyberinfomines Makes You Job-Ready with It

1. Java in 2025: Still Relevant, Still Dominating Despite the rise of new languages like Python, Go, and Rust, Java is far from dead—it’s actually thriving.

In 2025, Java powers:

40%+ of enterprise backend systems

90% of Android apps

Global banking & fintech infrastructures

E-commerce giants like Amazon, Flipkart & Alibaba

Microservices and cloud-native platforms using Spring Boot

Java is reliable, scalable, and highly in demand. But just learning syntax won’t get you hired. You need hands-on experience, framework expertise, and the ability to solve real-world problems.

That’s exactly what Cyberinfomines delivers.

2. The Problem: Why Most Java Learners Don’t Get Jobs Many students learn Java but still fail to land jobs. Why?

❌ They focus only on theory ❌ They memorize code, don’t build projects ❌ No real understanding of frameworks like Spring Boot ❌ Can’t explain their code in interviews ❌ Lack of problem-solving or debugging skills

That’s where Cyberinfomines’ Training changes the game—we teach Java like it’s used in real companies.

3. How Cyberinfomines Bridges the Gap At Cyberinfomines, we:

✅ Teach Core + Advanced Java with daily coding tasks ✅ Use real-world problem statements (not academic ones) ✅ Give exposure to tools like IntelliJ, Git, Maven ✅ Build full-stack projects using Spring Boot + MySQL ✅ Run mock interviews and HR prep ✅ Help you create a Java portfolio for recruiters

And yes—placement support is part of the package.

4. Java Course Curriculum: Built for the Real World Core Java

Data types, loops, arrays, OOP principles

Exception handling, packages, constructors

File handling & multithreading

Classes vs Interfaces

String manipulation & memory management

Advanced Java

JDBC (Java Database Connectivity)

Servlet Lifecycle

JSP (Java Server Pages)

HTTP Requests & Responses

MVC Design Pattern

Spring Framework + Spring Boot

Dependency Injection & Beans

Spring Data JPA

RESTful API Creation

Security & authentication

Connecting with front-end apps (React/Angular)

Tools Covered

IntelliJ IDEA

Eclipse

Postman

Git & GitHub

MySQL & Hibernate

Live Projects

Library Management System

Employee Leave Tracker

E-Commerce REST API

Blog App with full CRUD

Interview Preparation

DSA using Java

Java-based coding problems

100+ mock interview questions

HR round preparation

Resume writing workshops

5. Who Should Learn Java in 2025? You should choose Java if you are:

 A fresher who wants a strong foundation

 A non-tech graduate looking to switch to IT

 A teacher/trainer who wants to upskill

 A professional aiming for backend roles

 Someone interested in Android development

A student looking to crack placement drives or government IT jobs

6. Real Success Stories from Our Java Learners

Amit (BSc Graduate) – Now working as a Java backend developer at an IT firm in Pune. Built his confidence with live projects and mock tests.

Pooja (Mechanical Engineer) – Switched from core to IT after completing Cyberinfomines’ Java program. Cracked TCS with flying colors.

Rahul (Dropout) – Didn’t finish college but now works remotely as a freelance Spring Boot developer for a US-based startup.

Every story started with zero coding experience. They ended with real jobs.

7. Top Java Careers in 2025 & Salary Trends In-demand roles include:

Java Backend Developer

Full Stack Developer (Java + React)

Android Developer (Java)

Spring Boot Microservices Architect

QA Automation with Java + Selenium

API Developer (Spring + REST)

Starting salary: ₹4.5 – ₹8 LPA (for freshers with strong skills) Mid-level: ₹10 – ₹20 LPA Freelancers: ₹1,000 – ₹2,500/hour

Java is stable, scalable, and pays well.

8. Certifications, Tools & Practical Add-Ons After training, you’ll earn:

Cyberinfomines Java Developer Certificate

Portfolio with at least 3 GitHub-hosted projects

Proficiency in IntelliJ, Maven, Git, MySQL

Resume aligned with Java job descriptions

Interview recordings and performance feedback

9. What Makes Cyberinfomines Java Training Different

✔ Human mentorship, not just videos ✔ Doubt sessions + code reviews ✔ Classes in Hindi & English ✔ Live assignments + evaluation ✔ Placement-oriented approach ✔ No-nonsense teaching. Only what’s needed for jobs.

We focus on you becoming employable, not just completing a course.

10. Final Words: Code Your Future with Confidence Java in 2025 isn’t just relevant—it’s crucial.

And with Cyberinfomines, you don’t just learn Java.

You learn how to:

Solve real problems

Write clean, scalable code

Work like a developer

Get hired faster

Whether you’re starting fresh or switching paths, our Java course gives you the skills and confidence you need to build a future-proof career.

📞 Have questions? Want to get started?

Contact us today: 📧 vidhya.chandel@cyberinfomines.com 📞 +91-8587000904-905, 9643424141 🌐 Visit: www.cyberinfomines.com