抢票

 1 package demo7;
 2 
 3 //三个人共抢10张票，限黄牛党只能抢一张票
 4 public class MyThread7 implements Runnable {
 5     private int count = 10; // 票数
 6     private int num; // 抢到第几张票
 7 
 8     public void run() {
 9 
10         while (true) {
11             sale();
12             if(Thread.currentThread().getName().equals("黄牛党")) {
13                 try {
14                     Thread.sleep(10000);
15                 } catch (InterruptedException e) {
16                     e.printStackTrace();
17                 }
18             }
19         }
20     }
21 
22     public synchronized void sale() {
23         if (count <= 0) {
24             return;
25         }
26         try {
27             Thread.sleep(200);
28         } catch (InterruptedException e) {
29             e.printStackTrace();
30         }
31         System.out.println(Thread.currentThread().getName() + "抢到第" + (num + 1) + "张票，剩余" + (count - 1) + "张票");
32         num++;
33         count--;
34     }
35 
36     public static void main(String[] args) {
37         MyThread7 mt = new MyThread7();
38         Thread t1 = new Thread(mt, "李明");
39         Thread t2 = new Thread(mt, "黄牛党");
40         Thread t3 = new Thread(mt, "吴勇");
41         t1.start();
42         t2.start();
43         t3.start();
44         
45     }
46 }