package com.cppdy;

class MyThread11 extends Thread {

    //volatile让多个线程刷新falg的值

    public volatile boolean falg = true;

    @Override

    public void run() {

        System.out.println("子线程开始执行啦");

        while (falg) {

        }

        System.out.println("子线程结束执行啦");

    }

    public void setFalg(boolean falg) {

        this.falg=falg;

        System.out.println("falg的值："+this.falg);

    }

}

public class ThreadDemo11 {

    public static void main(String[] args) throws Exception {

        MyThread11 mt = new MyThread11();

        mt.start();

        Thread.sleep(1000);

        mt.setFalg(false);

        System.out.println("主线程结束啦");

    }

}