多线程下，两个线程交替打印0 -100，使用wait()和notify()

 1 public class ThreadTest{
 2     private static final Object lock = new Object();
 3 
 4    static  class ThreadA extends Thread{
 5         @Override
 6         public void run() {
 7             for (int i = 0; i < 100; i = i+2) {
 8                synchronized (lock){
 9                    lock.notify();
10                    System.out.println(Thread.currentThread().getName()+" "+i);
11                    try {
12                        lock.wait();
13                    } catch (InterruptedException e) {
14                        e.printStackTrace();
15                    }
16 
17                }
18             }
19         }
20 
21     }
22 
23     static  class ThreadB extends Thread{
24         @Override
25         public void run() {
26             for (int i = 1; i < 100; i = i+2) {
27                 synchronized (lock){
28                     lock.notify();
29                     System.out.println(Thread.currentThread().getName()+" "+i);
30                     try {
31                         lock.wait();
32                     } catch (InterruptedException e) {
33                         e.printStackTrace();
34                     }
35 
36                 }
37             }
38         }
39 
40     }
41     
42     public static void main(String[] args) {
43         new ThreadA().start();
44         new ThreadB().start();
45     }
46 }
运行结果：