import java.util.concurrent.ArrayBlockingQueue; import java.util.concurrent.BlockingQueue; public class BlockingQueueTest { public static void main(String[] args) { final BlockingQueue queue = new ArrayBlockingQueue(3); for(int i=0;i<2;i++){ new Thread(){ public void run(){ while(true){ try { Thread.sleep((long)(Math.random()*1000)); System.out.println(Thread.currentThread().getName() + "准备放数据!"); queue.put(1); System.out.println(Thread.currentThread().getName() + "已经放了数据," + "队列目前有" + queue.size() + "个数据"); } catch (InterruptedException e) { e.printStackTrace(); } } } }.start(); } new Thread(){ public void run(){ while(true){ try { //将此处的睡眠时间分别改成100和1000,观察运行结果 Thread.sleep(1000); System.out.println(Thread.currentThread().getName() + "准备取数据!"); queue.take(); System.out.println(Thread.currentThread().getName() + "已经取走数据," + "队列目前有" + queue.size() + "个数据"); } catch (InterruptedException e) { e.printStackTrace(); } } } }.start(); } }