Java Multithreading

⏷ 1. What is a thread in Java, and how is it different from a process?

⏷ 2. How do you create a thread in Java?

⏷ 3. What is the difference between Runnable and Callable?

⏷ 4. Explain the lifecycle of a thread in Java.

⏷ 5. What are daemon threads, and how do you create one?

⏷ 6. What is thread safety, and how is it achieved in Java?

⏷ 7. How does the synchronized keyword work?

⏷ 8. What are the differences between synchronized blocks and methods?

⏷ 9. What is a reentrant lock, and how is it different from synchronized?

⏷ 10. Explain how to use java.util.concurrent.locks.ReentrantLock features.

⏷ 11. Can you give a Real-World Example using Interruptible Lock with ReentrantLock?

⏷ 12. How does AtomicInteger improve thread safety?

⏷ 13. How does thread communication work in Java?

⏷ 14. Can you give a Real-World Example using wait(), notify(), and notifyAll()?

⏷ 15. What is a CountDownLatch, and how do you use it?

⏷ 16. What is the purpose of CyclicBarrier?

⏷ 17. Explain the difference between join() and sleep() methods.

⏷ 18. What is an executor in Java?

⏷ 19. How do you create a thread pool in Java?

⏷ 20. What is the difference between FixedThreadPool and CachedThreadPool?

⏷ 21. How does ScheduledExecutorService work?

⏷ 22. What are the use cases for ForkJoinPool?

⏷ 23. Can you explain how ForkJoinPool works?

⏷ 24. Can you some examples of Concurrency Low-Level APIs, along with their high-level alternatives?

⏷ 25. What is a ReadWriteLock, and how does it work?

⏷ 26. How does ThreadLocal work in Java?

⏷ 27. Explain the use of BlockingQueue and its implementations.

⏷ 28. When would you use a BlockingQueue and when a Kafka system?

⏷ 29. What is CompletionService in Java?

⏷ 30. What is a Semaphore, and how do you use it?