1.11守护线程

 1 package com.cky.daemon;
 2 
 3 /**
 4  * Created by edison on 2017/12/3.
 5  */
 6 public class MyThreads extends  Thread{
 7     private int i=0;
 8 
 9     @Override
10     public void run() {
11         super.run();
12         try {
13             while(true) {
14                 i++;
15                 System.out.println("i="+i);
16                 Thread.sleep(1000);
17             }
18         } catch (InterruptedException e) {
19             e.printStackTrace();
20         }
21     }
22 }

package com.cky.daemon;

/**
 * Created by edison on 2017/12/3.
 */
public class Tesst11 {
    public static void main(String[] args) {
        try {
            MyThreads myThreads = new MyThreads();
            //设置其为守护线程，默认为false，非守护线程
            myThreads.setDaemon(true);
            myThreads.start();
            Thread.sleep(5000);
            System.out.println("我离开thread对象，再也不打印了");
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}

i=1
i=2
i=3
i=4
i=5
i=6
我离开thread对象，再也不打印了

Process finished with exit code 0