Java ArrayBlockingQueue is a thread-safe blocking queue backed by an array. It implements the Java BlockingQueue interface and is part of Java's java.util.concurrent package. Introduced in Java 2004 with Java 5, ArrayBlockingQueue is used in multi-threaded environments to manage shared resources in a producer-consumer pattern, allowing threads to safely add and remove elements.

https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ArrayBlockingQueue.html

The Java ArrayBlockingQueue is a thread-safe blocking queue that is backed by an array. It implements the BlockingQueue interface, which is part of Java’s java.util.concurrent package. ArrayBlockingQueue is used to handle a collection of elements in a multi-threaded environment, where elements are added and removed in a thread-safe manner. It is particularly useful when managing a pool of tasks or when coordinating producer-consumer relationships between threads.

ArrayBlockingQueue allows threads to safely add and remove elements, with support for blocking operations. If the queue is full, any thread attempting to add an element will be blocked until space becomes available. Similarly, if the queue is empty, any thread attempting to remove an element will be blocked until an element becomes available. This feature ensures that the queue operates efficiently in a multi-threaded environment, preventing threads from consuming excessive CPU resources when waiting for operations to complete.

Introduced in Java 2004 with Java 5 as part of the java.util.concurrent package, ArrayBlockingQueue provides a high-performance, thread-safe mechanism for handling concurrent tasks. It is ideal for managing bounded collections where threads need to safely communicate and exchange data. This makes it a valuable tool for concurrent programming in multi-threaded applications.

ArrayBlockingQueue is commonly used in scenarios where a fixed-size buffer is needed, such as in thread pools, message queues, and task scheduling systems. It helps simplify the process of writing thread-safe code, as it handles synchronization and locking internally. For more information, refer to the official Java documentation.

https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ArrayBlockingQueue.html