JAVA学习之后台线程

 1 package withdaemon;
 2 
 3 public class Machine extends Thread {
 4     private int a;
 5     private static int count;
 6     
 7     public void start() {
 8         super.start();
 9         Thread deamon=new Thread() {
10         public void run() {
11             while(true) {
12                 reset();
13                 try {
14                     sleep(1000);
15                 } catch (InterruptedException e) {throw new RuntimeException(e);}
16             }
17         }
18     };
19     deamon.setDaemon(true);
20     deamon.start();
21 }
22     
23     public void reset() {a=0;}
24     public void run() {
25         while (true) {
26             System.out.println(getName()+":"+a++);
27             if (count++==100) break;
28             yield();
29         }
30     }
31     /**
32      * @param args
33      */
34     public static void main(String[] args) {
35         // TODO Auto-generated method stub
36         Machine machine=new Machine();
37         machine.start();
38     }
39 }