SynchronousQueue同步队列

SynchronousQueue

*同步队列

• 和其他的BlockingQueue不一样 SynchronousQueue不存储元素
• put一个元素，必须先取出来，否则不能再put元素进去

package SynchronousQueueA;

import java.util.concurrent.BlockingQueue;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.TimeUnit;


/**
 *同步队列
 * 和其他的BlockingQueue不一样   SynchronousQueue不存储元素
 * put一个元素，必须先取出来，否则不能再put元素进去
 *
 * @author liu
 */
public class Demo01 {
    public static void main(String[] args) {
        //同步队列
        BlockingQueue<String> synchronousQueue = new SynchronousQueue<String>();
        new Thread(() -> {
            try {System.out.println(Thread.currentThread().getName() + "put a");
                synchronousQueue.put("a");
                System.out.println(Thread.currentThread().getName() + "put b");
                synchronousQueue.put("b");
                System.out.println(Thread.currentThread().getName() + "put c");
                synchronousQueue.put("c");

            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            System.out.println();
        }, "T1").start();


        new Thread(() -> {
            try {
                TimeUnit.SECONDS.sleep(3);
                System.out.println(Thread.currentThread().getName() +"-->" +synchronousQueue.take());
                TimeUnit.SECONDS.sleep(3);
                System.out.println(Thread.currentThread().getName() + "-->" +synchronousQueue.take());
                TimeUnit.SECONDS.sleep(3);
                System.out.println(Thread.currentThread().getName() +"-->" + synchronousQueue.take());
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            System.out.println();
        }, "T2").start();
    }
}