礼让线程，让正执行的线程停止，但不阻塞

将线程从运行状态转为就绪状态

让cpu重新调度，礼让不一定成功，看cpu心情

package com.wuming.state;public class TestYield {public static void main(String[] args) {MyYield myYield = new MyYield();new Thread(myYield,"a").start();new Thread(myYield,"b").start();}
}
class MyYield implements Runnable{/*** When an object implementing interface <code>Runnable</code> is used* to create a thread, starting the thread causes the object's* <code>run</code> method to be called in that separately executing* thread.* <p>* The general contract of the method <code>run</code> is that it may* take any action whatsoever.** @see Thread#run()*/@Overridepublic void run() {System.out.println(Thread.currentThread().getName()+"线程开始执行");Thread.yield();//礼让System.out.println(Thread.currentThread().getName()+"线程停止执行");}
}

a线程开始执行
b线程开始执行
a线程停止执行
b线程停止执行