所有线程执行完再执行主线程案例

╰+哭是因爲堅強的太久メ 2023-06-19 11:26 5阅读 0赞

### 一、案例代码 ###

//计数器
            CountDownLatch countDownLatch = new CountDownLatch(2);
    
            //执行线程1
            new Thread(() -> {
                System.out.println(Thread.currentThread().getName() + ",子行程开始执行。。。");
                //计数器减1
                countDownLatch.countDown();
                System.out.println(Thread.currentThread().getName() + ",子行程执行结束。。。");
            }).start();
            //执行线程1
            new Thread(() -> {
                System.out.println(Thread.currentThread().getName() + ",子行程开始执行。。。");
                //计数器减1
                countDownLatch.countDown();
                System.out.println(Thread.currentThread().getName() + ",子行程执行结束。。。");
            }).start();
            //减去为0,恢复任务继续执行
            countDownLatch.await();
            System.out.println("两个子线程执行完毕....");
            System.out.println("主线程继续执行.....");
            for (int i = 0; i <10; i++) {
                System.out.println("main,i:"+i);
            }

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