"What changed in Java 17?" "How do virtual threads actually work?" Every Java developer gets these questions now, and a vague answer costs you. This is the course the author wished existed: 23 short videos, about 2 hours, that take you from Java 11 to Java 25 one LTS at a time, with real code, real output and the interview answers that go with it.
A library of 12+ Java e-books covering basics, OOP, DSA, problem solving and interview prep.
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100 Java Collections Framework interview questions with detailed answers, code examples and performance tips.
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The all-in-one Java bundle: 3000+ interview questions, 50+ e-books, 500+ coding problems, DSA notes and bonus courses.
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In Java 21, yes. A virtual thread that blocks inside a synchronized block stays stuck to its carrier thread, so other virtual threads cannot use that carrier. Java 24 fixed this for synchronized (JEP 491), so on Java 24 and 25 it no longer pins. Native frames and class initialisation can still pin, so ReentrantLock is still worth knowing.
23 HD videos (about 2 hours) with English captions, plus the cheat sheet PDF, quiz pack and checklist, all in your Library after payment.
No. If you know Java 8, you can start. The course builds up one version at a time.
Yes. Two full lessons on Java 25 LTS, and the Spring Boot 4 Java baseline (Java 17 or later), checked on docs.spring.io.
Yes: Java 21 to 25 features interview questions on our blog. This course goes deeper on every release from 11 to 25. Next step: JVM internals and performance tuning interview questions.
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