线程中join用法

阳光穿透心脏的1/2处 2023-08-17 16:52 67阅读 0赞

1 join()  当前线程中出现 thread1.join()  会先执行完thread1 然后再执行当前线程

public static void main(String[] args) {
            final Thread threadN = new Thread(new Runnable() {
                @Override
                public void run() {
                    System.out.println("产品经理正在规划新需求...");
                }
            });
    
            final Thread thread2 = new Thread(new Runnable() {
                @Override
                public void run() {
                    try {
                        thread1.join();
                        System.out.println("开发人员开发新需求功能");
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            });
    
            final Thread thread3 = new Thread(new Runnable() {
                @Override
                public void run() {
                    try {
                        thread2.join();
                        System.out.println("测试人员测试新功能");
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            });
    
            try {
                System.out.println("产品经理来上班了");
                System.out.println("测试人员来上班了");
                System.out.println("开发人员来上班了");
                thread1.start();
                //在父进程调用子进程的join()方法后，父进程需要等待子进程运行完再继续运行。
                System.out.println("开发人员和测试人员休息会...");
                thread1.join();
                System.out.println("产品经理新需求规划完成!");
                thread2.start();
                System.out.println("测试人员休息会...");
                thread2.join();
                thread3.start();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

转载于:https://www.cnblogs.com/spring20190213dream/p/10601567.html