CountDownLatch 控制线程调度顺序

package com.atguigu.bigdata.juc;

import java.util.concurrent.CountDownLatch;

/**
 * @author tianmin
 * @date 2020/3/2 0002
 * @notes CountDownLatch 控制线程调度顺序
 */
public class CountDownLatchDemo {
    public static void main(String[] args) throws InterruptedException {
        CountDownLatch countDownLatch = new CountDownLatch(6);

        for (int i = 0; i < 6; i++) {
            new Thread(()->{
                System.out.println(Thread.currentThread().getName() + "t离开教室");
                countDownLatch.countDown();
            }, String.valueOf(i)).start();
        }

        countDownLatch.await();
        System.out.println(Thread.currentThread().getName() + "班长关灯走人");
    }
}

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