1 package testBlog;
2
3 class MyThread implements Runnable {
4 private int ticket = 10;
5
6 @Override
7 public void run() {// 重点在此:要在覆写的run()方法中写上synchronized方法
8 int x;
9 for (x = 0; x < 20; x++) {// 执行20次sale()方法
10 this.sale();
11 }
12 }
13
14 public synchronized void sale() {// synchronized处通常是static的位置啊.这是一个synchronized方法
15 if (ticket > 0) {
16 try {
17 Thread.sleep(200);
18 } catch (InterruptedException e) {
19 e.printStackTrace();
20 }
21 System.out.println(Thread.currentThread().getName() + "卖票,票数剩余:" + --ticket);//这里用前减减更合适
22 }
23 }
24
25 }
26
27 public class Test {
28 public static void main(String[] args) {
29 MyThread mt = new MyThread();
30 new Thread(mt, "票贩子A").start();
31 new Thread(mt, "票贩子B").start();
32 new Thread(mt, "票贩子C").start();
33
34 }
35 }
