各个线程顺序循环执行

 1 package com.ydd.work.concurrent;
 2 
 3 import java.util.concurrent.atomic.AtomicInteger;
 4 /**
 5  * 
 6  * @author yunzhu.ydd
 7  *
 8  */
 9 public  class Task extends  Thread {
10 
11     protected AtomicInteger flag;
12     private int number;
13     private int id;
14     public Task( AtomicInteger flag,int number,int id)
15     {
16         this.flag=flag;
17         this.number=number;
18         this.id=id;
19     }
20    @Override
21     public void run() {
22      while(!Thread.interrupted())
23      {
24          synchronized(flag)
25          {
26              while(flag.get()!=id)
27              {
28                  try {
29                     flag.wait();
30                 } catch (InterruptedException e) {
31                     // TODO Auto-generated catch block
32                     e.printStackTrace();
33                 }
34              }
35           }
36          System.out.println("第"+id+"个任务在执行....");
37          //其他的任务
38          synchronized(flag)
39          {
40           flag.set((flag.get()+1)%number);
41            flag.notifyAll();
42          }
43      }
44 
45     }
46 
47 }