Java Multithreading: Exercises, Practices, Solutions
This resource offers a total of 75 Java Multithreading problems for practice. It includes 15 main exercises, each accompanied by solutions, detailed explanations, and four related problems.
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1. Increment shared counter with multiple threads
Write a Java program to create and start multiple threads that increment a shared counter variable concurrently.
2. Producer-consumer using wait() and notify()
Write a Java program to create a producer-consumer scenario using the wait() and notify() methods for thread synchronization.
3. Synchronize threads using ReentrantLock
Write a Java program that uses the ReentrantLock class to synchronize access to a shared resource among multiple threads.
4. Use Semaphore for thread synchronization
Write a Java program to demonstrate Semaphore usage for thread synchronization.
5. Synchronize threads using CyclicBarrier
Write a Java program to showcase the usage of the CyclicBarrier class for thread synchronization.
6. Coordinate threads with CountDownLatch
Write a Java program that uses the CountDownLatch class to synchronize the start and finish of multiple threads.
7. Use ReadWriteLock for concurrent access
Write a Java program to illustrate the usage of the ReadWriteLock interface for concurrent read-write access to a shared resource.
8. Access map concurrently with ConcurrentHashMap
Write a Java program demonstrating how to access a map concurrently using the ConcurrentHashMap class.
9. Thread-safe queue using ConcurrentLinkedQueue
Write a Java program that utilizes the ConcurrentLinkedQueue class to implement a thread-safe queue.
10. Coordinate threads using Phaser class
Write a Java program to showcase the usage of the Phaser class for coordination and synchronization of multiple threads.
11. Exchange data between threads using Exchanger
Write a Java program that utilizes the Exchanger class for exchanging data between two threads.
12. Use Callable and Future for async execution
Write a Java program to demonstrate the usage of the Callable and Future interfaces for executing tasks asynchronously and obtaining their results.
13. Schedule tasks using ScheduledExecutorService
Write a Java program that uses the ScheduledExecutorService interface to schedule tasks for execution at a specified time or with a fixed delay.
14. Parallel recursion with ForkJoinPool
Write a Java program to demonstrate the usage of the ForkJoinPool class for parallel execution of recursive tasks.
15. Optimize access with StampedLock
Write a Java program that utilizes the StampedLock class for optimizing concurrent read-write access to a shared resource.
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