Java Questions Repository
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Here is Java Interview Questions Repository. Our goal is to help you prepare as thoroughly as possible for your next big opportunity. and Our id is @DukeProject that is the Java mascot, which was open sourced by Sun Microsystems on November 13, 2006.
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| Date | Subscriber Growth | Mentions | Channels | |
| 02 July | 0 | |||
| 01 July | 0 |
Channel Posts
+1
Activating ChatGPT Pro ✨
This plan is available for teachers, so you’ll need an educational account. Here’s how to get one 👇
Step 1:
Go to https://em.bjedu.tech/en
Click on *Create New Email* to make a new address.
Important: from the dropdown menu, choose the erzi.me domain.
Keep that tab open.
Step 2:
Open ChatGPT in a browser where you haven’t signed in before.
Click Log in, paste the email you just created, set a password, and fill in your name and date of birth.
Make sure your birth year is 1996 or earlier.
Step 3:
ChatGPT will send a verification code to that email.
Go back to the BJEDU tab, copy the code, and paste it into ChatGPT.
When it asks for your role, select Teacher — and you’re all set! 😌🎓
| 2 | Java for AI
Many Java features (existing and future) can meet the demands of Al. | 264 |
| 3 | Java for AI
Many Java features (existing and future) can meet the demands of Al.
This presentation discusses these features and how they might be used by Java libraries and applications to build competitive Al solutions.
https://www.youtube.com/watch?v=hBffN0xW784
Presented by Paul Sandoz (Architect - Java Platform Group / Oracle) during Devoxx Belgium 2025
📅 Oct 14, 2025
https://www.youtube.com/watch?v=-XnyJad88Ss
Presented by Paul Sandoz (Architect - Java Platform Group / Oracle) during at JavaOne 2025 (CA, USA)
📅 May 3, 2025 | 256 |
| 4 | Microservices Rules : What good like ?!
By Chris Richardson | 783 |
| 5 |  Microservices Rules : What good like ?!
By Chris Richardson and Vaughn Vernon
📅 25 Nov 2025 | 953 |
| 6 |  Microservices Rules : What good like ?!
By Chris Richardson and Vaughn Vernon
San Francisco JUGS
JUG BB
Spring Berlin
East Bay JUG
Microservices Berlin
JetBrains
🚨 The event will be live streamed on the Berlin conference channel (https://www.youtube.com/microxchg)
and pot. SF Java (https://www.youtube.com/sfjava)
Today (24th of Nov)
at 7 pm in Berlin
at 21:30 in Tehran | 768 |
| 7 |  🧠🤖 When AIs see eye to eye!
Avoid hallucinations, test your AI’s truth-sense, and see how reliable your favorite model really is...
all with eye2.ai 👁️✨ | 895 |
| 8 |  Think Outside The Table
“SQL , NewSQL , NoSQL” | 445 |
| 9 | sticker.webp | 581 |
| 10 | Here's a concise recap of 30 years of Java, highlighting its evolution, impact, and key milestones since its inception:
1990s: Birth and Rapid Adoption
1991: Project Green initiated at Sun Microsystems to develop software for consumer electronics.
1995: Java officially launched. Originally called Oak, it was renamed to Java. First major public release: Java 1.0.
"Write Once, Run Anywhere" (WORA) became its slogan due to the Java Virtual Machine (JVM)
Early adopters: Netscape Navigator integrated Java Applets for dynamic web content.
2000s: Enterprise Expansion
Java 2 (J2SE, J2EE, J2ME): Java is split into Standard, Enterprise, and Micro Editions.
2004: Java becomes open source (mostly) under the Java Community Process (JCP).
2006: Sun open-sources Java under the GPL via the OpenJDK project.
Became a backbone for enterprise applications, especially through Java EE (now Jakarta EE).
2010s: Oracle Era and Modernizatior
2010: Oracle acquires Sun Microsystems, taking over Java stewardship.
Java 7 (2011) & Java 8 (2014): Introduced key features like try-with-resources, lambdas, and streams.
2017: Java EE transferred to the Eclipse Foundation and renamed Jakarta EE.
2017-2018: Introduction of time-based release cycle - one major Java version every 6 months.
2020s: Modern Java
Rapid feature releases: local variable type inference (var), records, sealed classes, pattern matching.
Performance improvements and new garbage collectors (ZGC, Shenandoah)
Project Panama, Project Valhalla, and Project Loom aim to enhance native interop, value types, and lightweight concurrency respectively.
Java 17 (2021) and Java 21 (2023) designated as Long-Term Support (LTS) versions.
2025 and Beyond : Java remains widely used in enterprise systems Android (though less dominantly), big data, finance, and backend systems
The ecosystem is now shaped by OpenJDK, Oracle, Eclipse Adoptium, Amazon Corretto, and others. | 536 |
| 11 |  Java: 30-Year Retrospective (1995-2025) | 359 |
| 12 |  🚀 Java’s AI Takeover? Python’s Reign Could End by 2025!
Java is making a bold move into AI, challenging Python’s dominance! 🔥 According to Simon Ritter, Deputy CTO at Azul Systems, enterprises are realizing that Java offers better performance and scalability for AI applications.
Key Highlights:
✅ Java is gaining traction in AI due to its enterprise-level reliability and performance.
✅ Project Panama & Project Babylon aim to boost Java’s AI capabilities by improving GPU performance.
✅ 50% of AI developers surveyed already use Java—more than Python and JavaScript!
✅ Enterprises face Python scalability limits, forcing them to integrate Java for long-term AI development.
📌 Experts are divided—while some believe Java will outpace Python within 18 months, others argue that Python’s extensive libraries will keep it ahead.
🔮 Will Java become the new king of AI development?
Tell us what you think! | 587 |
| 13 |  Hello Java Enthusiasts!
Today, I want to share an exciting website : DBGUIDE! 🚀
- Watch video and if you are accessing this link on a mobile device, we recommend switching to Desktop Mode for the best experience. | 698 |
| 14 |  Hello Java Enthusiasts!
Today, I want to share an exciting tool : Recaf! 🚀
What is Recaf?
Recaf is a modern Java bytecode editor that simplifies the complexities of Java applications. Whether you're looking to reverse engineer a Java app or edit class files, Recaf has got you covered!
Key Features:
Decompilation: Easily convert Java class files into readable source code.
Editing Capabilities: Modify bytecode directly without recompiling the entire project.
User-Friendly Interface: Navigate effortlessly with its modern design.
Support for Multiple Formats: Work with various Java bytecode formats.
Extensibility: Integrate additional features or plugins as needed.
Use Cases:
Reverse Engineering: Analyze third-party Java applications.
Debugging: Make quick fixes for testing purposes.
Learning: Gain insights into Java programming through code examination.
Check out Recaf on GitHub for more details and to download it : https://github.com/Col-E/Recaf | 110 |
| 15 | sticker.webp | 96 |
| 16 | Hello Java Enthusiast!
I stumbled upon an interesting website today called Codemia that I wanted to share with our Java community.
Codemia.io , designed to help software engineers master system design interviews through active practice.
Key Features:
Interactive Learning: Over 120 system design practice problems.
AI-Guided Feedback: Instant insights to improve your skills.
Comprehensive Resources: Access to 80+ solutions and 20+ object-oriented design problems.
Community Interaction: Collaborate and receive feedback from peers.
Flexible Learning: Suitable for both beginners and experienced professionals.
Perfect for interview prep or skill-building!
Check it out and start your journey to mastering system design! ❤️👌🏻 | 152 |
| 17 | sticker.webp | 119 |
| 18 | Which of the following are printed by the Bear program? (Choose all that apply.) | 104 |
| 19 | In this code:
public class Bear {
enum FOOD {
BERRIES, INSECTS {
public boolean isHealthy() { return true; }},
FISH, ROOTS, COOKIES, HONEY;
public abstract boolean isHealthy();
}
public static void main(String[] args) {
System.out.print(FOOD.INSECTS);
System.out.print(FOOD.INSECTS.ordinal());
System.out.print(FOOD.INSECTS.isHealthy());
System.out.print(FOOD.COOKIES.isHealthy());
}
} | 89 |
| 20 | sticker.webp | 70 |
