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Code. Spawn. Synchronize. — A Guide to Java Multi-threading
- Multi-threading in Java allows applications to split responsibilities, delegate tasks, and handle complexity more efficiently.
- Threads in Java are created by extending the Thread class or implementing the Runnable interface, providing flexibility for different use cases.
- Thread states in Java include NEW, RUNNABLE, RUNNING, TIMED_WAITING, and TERMINATED, each representing a different stage of thread execution.
- Java provides synchronization mechanisms like locks and inter-thread communication to control access to shared resources and avoid data inconsistencies.
- ExecutorService in Java offers a high-level API for managing a pool of worker threads efficiently, improving performance and resource management.
- Future
in Java represents the result of an asynchronous computation, allowing for tasks to be executed and results retrieved at a later time. - ReentrantLock in Java provides full manual control over locking behavior, allowing the same thread to acquire the lock multiple times without getting blocked.
- CyclicBarrier is used to synchronize multiple threads at a common barrier point before proceeding together, helpful in scenarios where coordination is required.
- The volatile keyword in Java ensures immediate visibility of variable changes across threads, while AtomicInteger provides atomicity for concurrent updates without explicit synchronization.
- Java's concurrent utilities offer powerful abstractions for handling multithreading scenarios efficiently and effectively.
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