多线程编程<五>

 1 /**
 2  * 中断线程：当线程由于调用sleep(),join(),wait()而暂停时，如果中断它，则会收到一个InterruptedException异常。
 3  * 调用Thread.isInterrupted()，Thread.interrupted()判断中断，Thread.interrupted()会重新设置线程的中断状态。
 4  */
 5 public class InterruptDemo {
 6     public static void main(String[] args) {
 7         MyThread mt = new MyThread();
 8         MyThread mt2 = new MyThread();
 9         Thread thrd = new Thread(mt, "MyThread #1");
10         Thread thrd2 = new Thread(mt2, "MyThread #2");
11         try {
12             thrd.start();
13             Thread.sleep(1000);
14             thrd.interrupt();
15
16             thrd2.start();
17             System.out.println();
18             Thread.sleep(4000);
19             thrd2.interrupt();
20         } catch (InterruptedException e) {
21             System.out.println("Main thread Interrupted");
22         }
23     }
24 }
25 class MyThread implements Runnable {
26
27     @Override
28     public void run() {
29         String thrdName = Thread.currentThread().getName();
30         System.out.println(thrdName + " starting.");
31
32         try {
33             Thread.sleep(3000);
34             for(int i= 0;i<1000;i++) {
35                 if(Thread.interrupted()) {//判断线程是否是中断
36                     System.out.println("Thread interrupted while active.");
37                     break;
38                 }
39                 System.out.print(".");
40                 for(long x=0;x<1000000;x++) ;
41             }
42         } catch (InterruptedException e) {
43             System.out.println(thrdName + " interrupted.");
44         }
45         System.out.println(thrdName + " exiting.");
46     }
47
48 }