How to use LinkedBlockingQueue in Java?

LinkedBlockingQueue is a thread-safe blocking queue in Java, implemented based on a linked list, and used for passing data between producers and consumers.

To use LinkedBlockingQueue, the first step is to create a LinkedBlockingQueue object.

LinkedBlockingQueue<Integer> queue = new LinkedBlockingQueue<Integer>();

Afterwards, you can add elements to the queue using the following method:

queue.add(element); //添加元素到队列，如果队列已满则抛出异常
queue.offer(element); //添加元素到队列，如果队列已满则返回false
queue.put(element); //添加元素到队列，如果队列已满则阻塞直到队列有空闲位置

You can obtain and remove elements from the queue using the following method:

Integer element = queue.remove(); //获取并移除队列头部的元素，如果队列为空则抛出异常
Integer element = queue.poll(); //获取并移除队列头部的元素，如果队列为空则返回null
Integer element = queue.take(); //获取并移除队列头部的元素，如果队列为空则阻塞直到队列有元素

You can also retrieve but not remove the elements at the head of the queue using the following method.

Integer element = queue.element(); //获取队列头部的元素，如果队列为空则抛出异常
Integer element = queue.peek(); //获取队列头部的元素，如果队列为空则返回null

It is worth noting that the capacity of LinkedBlockingQueue can be dynamically adjusted, with a default capacity of Integer.MAX_VALUE.

In addition to the methods mentioned above, LinkedBlockingQueue also offers some other methods such as getting the queue size and checking if the queue is empty, which can be chosen according to specific needs.