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Java Multithreading
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- Lucian Oprea
- @LucianDSA_
00:30:00
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Basics of 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?
Synchronization and Concurrency
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⏷ 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?
Thread Communication
⏷ 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.
Thread Pools and Executors
⏷ 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?
Advanced Concurrency Tools
⏷ 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?
Deadlock, Livelock, and Race Condition
⏷ 31. What is the deadlock and the main reason behind the deadlock?
⏷ 32. What are the best ways to avoid deadlocks?
⏷ 33. What is a Race Condition? What are the main reasons behind race conditions
⏷ 34. Which are the best ways to avoid Race Conditions?
⏷ Reference: Concurrent Collections
Parallel Streams and ForkJoin Framework
⏷ 35. How do Java streams handle multithreading?
⏷ 36. What are common pitfalls of using parallel streams?
⏷ 37. What is the ForkJoin framework in Java?
⏷ 38. Explain how to configure the common pool for parallel streams.
Performance and Best Practices
⏷ 39. What are best practices for designing multithreaded applications?
⏷ 40. How can you avoid excessive context switching?
⏷ 41. How do you measure thread performance in Java?
⏷ 42. Explain how to debug multithreading issues in Java.
Real-World Use Cases
⏷ 43. Explain how multithreading is used in web servers.