多线程操作例题

有三个线程ID分别是A、B、C，用多线编程 实现 在屏幕上循环打印10次ABCABC......

package com.multithread.wait;  public class MyThreadPrinter2 implements Runnable {         private String name;         private Object prev;         private Object self;         private MyThreadPrinter2(String name, Object prev, Object self) {             this.name = name;             this.prev = prev;             this.self = self;         }         @Override        public void run() {             int count = 10;             while (count > 0) {                 synchronized (prev) {                     synchronized (self) {                         System.out.print(name);                         count--;                        self.notify();                     }                     try {                         prev.wait();                     } catch (InterruptedException e) {                         e.printStackTrace();                     }                 }             }         }         public static void main(String[] args) throws Exception {             Object a = new Object();             Object b = new Object();             Object c = new Object();             MyThreadPrinter2 pa = new MyThreadPrinter2("A", c, a);             MyThreadPrinter2 pb = new MyThreadPrinter2("B", a, b);             MyThreadPrinter2 pc = new MyThreadPrinter2("C", b, c);             new Thread(pa).start();          Thread.sleep(100);  //确保按顺序A、B、C执行          new Thread(pb).start();          Thread.sleep(100);            new Thread(pc).start();             Thread.sleep(100);            }     }