用户线程和守护线程

应用案例：下面我们测试如何将一个线程设置成守护线程：

package com.yuecheng.hspedu.exit.method;

public class ThreadMethod03 {
    public static void main(String[] args) throws InterruptedException {
        A2 a2 = new A2();
        Thread thread = new Thread(a2);
        thread.setDaemon(true);//守护线程的设置需要在子线程启动之前
        thread.start();

        //如果我们希望当main线程结束后，子线程自动结束
        //只需将子线程设置为守护线程
        for (int i = 0; i < 10; i++) {//main线程
            System.out.println("主线程沉迷学习~~~~~~~~~");
            Thread.sleep(1000);
        }

    }
}
class A2 implements Runnable{
    @Override
    public void run() {
        for ( ; ; ){//无限循环
            try {
                Thread.sleep(500);//休眠500ms
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            System.out.println("雷霆嘎巴");
        }
    }
}