多线程案例

矫情吗；* 2022-06-13 03:21 246阅读 0赞

[Java][]多线程的常见例子

一.相关知识：

Java多线程程序设计到的知识：

（一）对同一个数量进行操作

（二）对同一个对象进行操作

（三）回调方法使用

（四）线程同步，死锁问题

（五）线程通信

等等

二．示例一：三个售票窗口同时出售20张票;

程序分析：1.票数要使用同一个静态值

2.为保证不会出现卖出同一个票数，要java多线程同步锁。

设计思路：1.创建一个站台类Station，继承Thread，重写run方法，在run方法里面执行售票操作！售票要使用同步锁：即有一个站台卖这张票时，其他站台要等这张票卖完！

2.创建主方法调用类

（一）创建一个站台类，继承Thread

<table style="border-collapse:collapse; border:none; margin:0px; padding:0px; table-layout:fixed"> 
 <tbody> 
  <tr> 
   <td style="border:none; margin:0px; padding:0px; vertical-align:top; background:rgb(238,238,238); width:50px"> <pre style="white-space: pre-wrap; word-wrap: break-word; border: none; border-radius: 0px; font-family: Menlo, &quot;Liberation Mono&quot;, Consolas, &quot;Courier New&quot;, &quot;andale mono&quot;, &quot;lucida console&quot;, monospace; margin-top: 0px; margin-bottom: 0px; padding: 10px 6px 10px 0px; width: auto; color: rgb(102, 102, 102); text-align: right; background: rgb(238, 238, 238); line-height: 16px !important;"><a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L1" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  1</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L2" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  2</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L3" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  3</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L4" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  4</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L5" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  5</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L6" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  6</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L7" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  7</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L8" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  8</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L9" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  9</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L10" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 10</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L11" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 11</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L12" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 12</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L13" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 13</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L14" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 14</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L15" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 15</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L16" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 16</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L17" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 17</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L18" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 18</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L19" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 19</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L20" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 20</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L21" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 21</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L22" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 22</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L23" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 23</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L24" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 24</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L25" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 25</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L26" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 26</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L27" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 27</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L28" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 28</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L29" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 29</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L30" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 30</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L31" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 31</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L32" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 32</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L33" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 33</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L34" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 34</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L35" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 35</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L36" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 36</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L37" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 37</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L38" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 38</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L39" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 39</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L40" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 40</a></pre></td> 
   <td style="border:none; margin:0px; padding:0px; vertical-align:top"> 
    <div style="border-left:1px solid rgb(222,226,227); overflow-x:auto; overflow-y:hidden"> 
     <pre style="word-wrap:normal; background-color:rgb(255,255,255); color:rgb(51,51,51); border:none; font-family:Menlo,&quot;Liberation Mono&quot;,Consolas,&quot;Courier New&quot;,&quot;andale mono&quot;,&quot;lucida console&quot;,monospace; margin-top:0px; margin-bottom:0px; padding:10px 0px; line-height:16px!important">
             
              
      <div style="padding:0px 10px">
       
               
              package com.xykj.threadStation;
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              public class Station extends Thread {
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      // 通过构造方法给线程名字赋值
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      public Station(String name) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                           super(name);// 给线程名字赋值
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      }
             
              
      </div>
             
              
      <div style="padding:0px 10px">         
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      // 为了保持票数的一致，票数要静态
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      static int tick = 20;
             
              
      </div>
             
              
      <div style="padding:0px 10px">         
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      // 创建一个静态钥匙
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      static Object ob = "aa";//值是任意的
             
              
      </div>
             
              
      <div style="padding:0px 10px">         
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      // 重写run方法，实现买票操作
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      @Override
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      public void run() {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          while (tick &gt; 0) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              synchronized (ob) {// 这个很重要，必须使用一个锁，
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                  // 进去的人会把钥匙拿在手上，出来后才把钥匙拿让出来
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                  if (tick &gt; 0) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                      System.out.println(getName() + "卖出了第" + tick + "张票");
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                      tick--;
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                  } else {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                      System.out.println("票卖完了");
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                  }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              try {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                   sleep(1000)；//休息一秒
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              } catch (InterruptedException e) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                  e.printStackTrace();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              }
             
              
      </div>
             
              
      <div style="padding:0px 10px">             
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  }
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              }
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div></pre> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

##### [ 来自CODE的代码片][CODE]  snippet\_file\_0.txt #####

（二）创建主方法调用类

##### [ 来自CODE的代码片][CODE 1]  snippet\_file\_0.txt #####

程序运行结果：

![20160913122535531][]

可以看到票数是不会有错的！

三．示例二：两个人AB通过一个账户A在柜台取钱和B在ATM机取钱！

程序分析：钱的数量要设置成一个静态的变量。两个人要取的同一个对象值

（一）创建一个Bank类

##### [ 来自CODE的代码片][CODE 2]  snippet\_file\_0.txt #####

（二）创建一个PersonA类

##### [ 来自CODE的代码片][CODE 3]  snippet\_file\_0.txt #####

（三）创建一个PersonB类

##### [ 来自CODE的代码片][CODE 4]  snippet\_file\_0.txt #####

（四）创建主方法的调用类

##### [ 来自CODE的代码片][CODE 5]  snippet\_file\_0.txt #####

运行结果：

![20160913123938063][]

可以看到取完就停止运行了。

四．示例三：龟兔赛跑问题

龟兔赛跑：20米     //只要为了看到效果，所有距离缩短了

要求：

1.兔子每秒0.5米的速度，每跑2米休息10秒，

2.乌龟每秒跑0.1米，不休息

3.其中一个跑到终点后另一个不跑了！

程序设计思路：

1.创建一个Animal动物类，继承Thread，编写一个running抽象方法，重写run方法，把running方法在run方法里面调用。

2.创建Rabbit兔子类和Tortoise乌龟类，继承动物类

3.两个子类重写running方法

4.本题的第3个要求涉及到线程回调。需要在动物类创建一个回调接口，创建一个回调对象

（一）创建Animal动物类

</div>
             
              
      <div style="padding:0px 10px">
       
               
                  public double length=20;//比赛的长度
             
              
      </div>
             
              
      <div style="padding:0px 10px">    
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  public abstract void runing();//抽象方法需要子类实现
             
              
      </div>
             
              
      <div style="padding:0px 10px">    
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  //在父类重写run方法，在子类只要重写running方法就可以了
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  @Override
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  public void run() {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      super.run();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      while (length&gt;0) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                           runing();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  }
             
              
      </div>
             
              
      <div style="padding:0px 10px">    
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  //在需要回调数据的地方（两个子类需要），声明一个接口
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  public static interface Calltoback{
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      public void win();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  }
             
              
      </div>
             
              
      <div style="padding:0px 10px">    
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  //2.创建接口对象
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  public Calltoback calltoback;
             
              
      </div>
             
              
      <div style="padding:0px 10px">    
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              }
             
              
      </div></pre> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

##### [ 来自CODE的代码片][CODE 6]  snippet\_file\_0.txt #####

（二）创建Rabbit兔子类

<table style="border-collapse:collapse; border:none; margin:0px; padding:0px; table-layout:fixed"> 
 <tbody> 
  <tr> 
   <td style="border:none; margin:0px; padding:0px; vertical-align:top; background:rgb(238,238,238); width:50px"> <pre style="white-space: pre-wrap; word-wrap: break-word; border: none; border-radius: 0px; font-family: Menlo, &quot;Liberation Mono&quot;, Consolas, &quot;Courier New&quot;, &quot;andale mono&quot;, &quot;lucida console&quot;, monospace; margin-top: 0px; margin-bottom: 0px; padding: 10px 6px 10px 0px; width: auto; color: rgb(102, 102, 102); text-align: right; background: rgb(238, 238, 238); line-height: 16px !important;"><a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L1" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  1</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L2" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  2</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L3" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  3</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L4" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  4</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L5" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  5</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L6" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  6</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L7" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  7</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L8" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  8</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L9" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  9</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L10" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 10</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L11" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 11</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L12" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 12</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L13" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 13</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L14" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 14</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L15" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 15</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L16" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 16</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L17" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 17</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L18" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 18</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L19" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 19</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L20" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 20</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L21" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 21</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L22" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 22</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L23" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 23</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L24" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 24</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L25" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 25</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L26" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 26</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L27" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 27</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L28" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 28</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L29" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 29</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L30" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 30</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L31" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 31</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L32" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 32</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L33" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 33</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L34" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 34</a></pre></td> 
   <td style="border:none; margin:0px; padding:0px; vertical-align:top"> 
    <div style="border-left:1px solid rgb(222,226,227); overflow-x:auto; overflow-y:hidden"> 
     <pre style="word-wrap:normal; background-color:rgb(255,255,255); color:rgb(51,51,51); border:none; font-family:Menlo,&quot;Liberation Mono&quot;,Consolas,&quot;Courier New&quot;,&quot;andale mono&quot;,&quot;lucida console&quot;,monospace; margin-top:0px; margin-bottom:0px; padding:10px 0px; line-height:16px!important">
             
              
      <div style="padding:0px 10px">
       
               
              package com.xykj.rabbit_tortoise;
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              public class Rabbit extends Animal {
             
              
      </div>
             
              
      <div style="padding:0px 10px">     
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  public Rabbit() {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      setName("兔子");// Thread的方法，给线程赋值名字
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  }
             
              
      </div>
             
              
      <div style="padding:0px 10px">     
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  // 重写running方法，编写兔子的奔跑操作
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  @Override
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  public void runing() {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      // 跑的距离
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      double dis = 0.5;
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      length -= dis;//跑完后距离减少
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      if (length &lt;= 0) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          length = 0;
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          System.out.println("兔子获得了胜利");
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          //给回调对象赋值，让乌龟不要再跑了
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          if (calltoback != null) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              calltoback.win();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      System.out.println("兔子跑了" + dis + "米，距离终点还有" + (int)length + "米");
             
              
      </div>
             
              
      <div style="padding:0px 10px">         
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      if (length % 2 == 0) {// 两米休息一次
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          try {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              sleep(1000);
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          } catch (InterruptedException e) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              e.printStackTrace();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              }
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div></pre> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

##### [ 来自CODE的代码片][CODE 7]  snippet\_file\_0.txt #####

（三）创建Tortoise乌龟类

<table style="border-collapse:collapse; border:none; margin:0px; padding:0px; table-layout:fixed"> 
 <tbody> 
  <tr> 
   <td style="border:none; margin:0px; padding:0px; vertical-align:top; background:rgb(238,238,238); width:50px"> <pre style="white-space: pre-wrap; word-wrap: break-word; border: none; border-radius: 0px; font-family: Menlo, &quot;Liberation Mono&quot;, Consolas, &quot;Courier New&quot;, &quot;andale mono&quot;, &quot;lucida console&quot;, monospace; margin-top: 0px; margin-bottom: 0px; padding: 10px 6px 10px 0px; width: auto; color: rgb(102, 102, 102); text-align: right; background: rgb(238, 238, 238); line-height: 16px !important;"><a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L1" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  1</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L2" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  2</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L3" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  3</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L4" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  4</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L5" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  5</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L6" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  6</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L7" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  7</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L8" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  8</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L9" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  9</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L10" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 10</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L11" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 11</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L12" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 12</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L13" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 13</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L14" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 14</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L15" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 15</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L16" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 16</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L17" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 17</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L18" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 18</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L19" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 19</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L20" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 20</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L21" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 21</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L22" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 22</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L23" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 23</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L24" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 24</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L25" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 25</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L26" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 26</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L27" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 27</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L28" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 28</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L29" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 29</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L30" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 30</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L31" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 31</a></pre></td> 
   <td style="border:none; margin:0px; padding:0px; vertical-align:top"> 
    <div style="border-left:1px solid rgb(222,226,227); overflow-x:auto; overflow-y:hidden"> 
     <pre style="word-wrap:normal; background-color:rgb(255,255,255); color:rgb(51,51,51); border:none; font-family:Menlo,&quot;Liberation Mono&quot;,Consolas,&quot;Courier New&quot;,&quot;andale mono&quot;,&quot;lucida console&quot;,monospace; margin-top:0px; margin-bottom:0px; padding:10px 0px; line-height:16px!important">
             
              
      <div style="padding:0px 10px"> 
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              package com.xykj.rabbit_tortoise;
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              public class Tortoise extends Animal {
             
              
      </div>
             
              
      <div style="padding:0px 10px">     
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  public Tortoise() {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      setName("乌龟");// Thread的方法，给线程赋值名字
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  }
             
              
      </div>
             
              
      <div style="padding:0px 10px">     
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  // 重写running方法，编写乌龟的奔跑操作
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  @Override
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  public void runing() {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      // 跑的距离
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      double dis = 0.1;
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      length -= dis;
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      if (length &lt;= 0) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          length = 0;
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          System.out.println("乌龟获得了胜利");
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          // 让兔子不要在跑了
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          if (calltoback != null) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              calltoback.win();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      System.out.println("乌龟跑了" + dis + "米，距离终点还有" + (int) length + "米");
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      try {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          sleep(100);
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      } catch (InterruptedException e) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          e.printStackTrace();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              }
             
              
      </div></pre> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

##### [ 来自CODE的代码片][CODE 8]  snippet\_file\_0.txt #####

（四）创建一个让动物线程停止的类，这里要实现回调接口

</div>
             
              
      <div style="padding:0px 10px">
       
               
                  // 动物对象
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  Animal an;
             
              
      </div>
             
              
      <div style="padding:0px 10px">    
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  // 获取动物对象，可以传入兔子或乌龟的实例
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  public LetOneStop(Animal an) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      this.an = an;
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  }
             
              
      </div>
             
              
      <div style="padding:0px 10px">    
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  //让动物的线程停止
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  @Override
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  public void win() {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      // 线程停止
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      an.stop();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  }
             
              
      </div>
             
              
      <div style="padding:0px 10px">     
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              }
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div></pre> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

##### [ 来自CODE的代码片][CODE 9]  snippet\_file\_0.txt #####

（五）创建一个主方法调用类，

##### [ 来自CODE的代码片][CODE 10]  snippet\_file\_0.txt #####

运行结果：

![20160913125028600][]

可以看到结果兔子赢了。

一般来说兔子获得了胜利是在最后输出的，

但是，由于线程一直在执行所以会出现：

“兔子跑了0.5米，距离终点还有0米”还没来得及输出完，

而“兔子获得了胜利”已经输出完毕了。

五．实例四:

在一个KFC内，服务员负责生产食物，消费者负责消费食物；

当生产到一定数量可以休息一下，直到消费完食物，再马上生产，一直循环

程序涉及到的内容：

1.这设计到java模式思想：生产者消费者模式

2.要保证操作对象的统一性，即消费者和服务者都是跟同一个KFC发生关系的，KFC只能new一次

3.this.notifyAll();和 this.wait();一个是所有唤醒的意思，一个是让自己等待的意思；

比如本题中，生产者生产完毕后，先所有唤醒（包括消费者和生产者），再让所有自己（生产者）等待

这时，消费者开始消费，直到食材不够，先所有唤醒（包括消费者和生产者），再让所有自己（消费者）等待

一直执行上面的操作的循环

4.生产者和消费者都要继承Thread，才能实现多线程的启动

程序设计的步骤思路：

1.创建一个食物类Food，有存放/获取食物的名称的方法

2.创建一个KFC类，有生产食物和消费食物的方法

3.创建一个客户类Customer，继承Thread，重写run方法，在run方法里面进行消费食物操作

4.创建一个服务员类Waiter，继承Thread，重写run方法，在run方法里面进行生产食物的操作

5.创建主方法的调用类

（一）创建一个食物类Food

##### [ 来自CODE的代码片][CODE 11]  snippet\_file\_0.txt #####

（二）创建一个KFC类

<table style="border-collapse:collapse; border:none; margin:0px; padding:0px; table-layout:fixed"> 
 <tbody> 
  <tr> 
   <td style="border:none; margin:0px; padding:0px; vertical-align:top; background:rgb(238,238,238); width:50px"> <pre style="white-space: pre-wrap; word-wrap: break-word; border: none; border-radius: 0px; font-family: Menlo, &quot;Liberation Mono&quot;, Consolas, &quot;Courier New&quot;, &quot;andale mono&quot;, &quot;lucida console&quot;, monospace; margin-top: 0px; margin-bottom: 0px; padding: 10px 6px 10px 0px; width: auto; color: rgb(102, 102, 102); text-align: right; background: rgb(238, 238, 238); line-height: 16px !important;"><a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L1" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  1</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L2" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  2</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L3" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  3</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L4" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  4</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L5" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  5</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L6" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  6</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L7" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  7</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L8" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  8</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L9" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  9</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L10" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 10</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L11" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 11</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L12" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 12</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L13" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 13</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L14" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 14</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L15" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 15</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L16" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 16</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L17" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 17</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L18" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 18</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L19" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 19</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L20" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 20</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L21" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 21</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L22" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 22</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L23" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 23</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L24" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 24</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L25" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 25</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L26" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 26</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L27" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 27</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L28" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 28</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L29" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 29</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L30" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 30</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L31" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 31</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L32" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 32</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L33" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 33</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L34" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 34</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L35" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 35</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L36" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 36</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L37" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 37</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L38" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 38</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L39" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 39</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L40" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 40</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L41" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 41</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L42" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 42</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L43" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 43</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L44" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 44</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L45" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 45</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L46" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 46</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L47" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 47</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L48" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 48</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L49" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 49</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L50" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 50</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L51" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 51</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L52" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 52</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L53" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 53</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L54" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 54</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L55" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 55</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L56" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 56</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L57" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 57</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L58" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 58</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L59" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 59</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L60" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 60</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L61" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 61</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L62" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 62</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L63" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 63</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L64" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 64</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L65" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 65</a></pre></td> 
   <td style="border:none; margin:0px; padding:0px; vertical-align:top"> 
    <div style="border-left:1px solid rgb(222,226,227); overflow-x:auto; overflow-y:hidden"> 
     <pre style="word-wrap:normal; background-color:rgb(255,255,255); color:rgb(51,51,51); border:none; font-family:Menlo,&quot;Liberation Mono&quot;,Consolas,&quot;Courier New&quot;,&quot;andale mono&quot;,&quot;lucida console&quot;,monospace; margin-top:0px; margin-bottom:0px; padding:10px 0px; line-height:16px!important">
             
              
      <div style="padding:0px 10px">
       
               
              package com.xykj.producer_consumer;
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              import java.util.ArrayList;
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              import java.util.List;
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              public class KFC {
             
              
      </div>
             
              
      <div style="padding:0px 10px">

</div>
             
              
      <div style="padding:0px 10px">
       
               
                  //食物的种类
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  String[] names = { "薯条", "烧板", "鸡翅", "可乐" };
             
              
      </div>
             
              
      <div style="padding:0px 10px">    
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  //生产的最大值，到达后可以休息
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  static final int Max = 20;
             
              
      </div>
             
              
      <div style="padding:0px 10px">    
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  //存放食物的集合
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  List&lt;Food&gt; foods = new ArrayList&lt;Food&gt;();
             
              
      </div>
             
              
      <div style="padding:0px 10px">     
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  // 生产食物的方法
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  public void prod(int index) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      synchronized (this) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          // 如果食物数量大于20
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          while (foods.size() &gt; Max) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              System.out.println("食材够了");
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              this.notifyAll();//这个唤醒是针对生产者和消费者，有all
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              try {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                  String name=Thread.currentThread().getName();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                  this.wait();//这个唤醒是针对生产者，没有all
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                  System.out.println("生产者："+name);
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              } catch (InterruptedException e) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                  e.printStackTrace();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          }
             
              
      </div>
             
              
      <div style="padding:0px 10px">             
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          // 开始生产食物食物//有一点要注意的
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          System.out.println("开始生产食物");
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          for (int i = 0; i &lt; index; i++) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              Food food = new Food(names[(int) (Math.random() * 4)]);
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              foods.add(food);
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              System.out.println("生产了" + food.getName() + foods.size());
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  }
             
              
      </div>
             
              
      <div style="padding:0px 10px">     
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  // 消费食物的方法
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  public void consu(int index) { 
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      synchronized (this) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          while (foods.size() &lt; index) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              System.out.println("食材不够了");
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              this.notifyAll();//这个唤醒是针对生产者和消费者，有all
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              try {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                  String name=Thread.currentThread().getName();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                  this.wait();//这个唤醒是针对消费者，没有all
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                  System.out.println("消费者："+name);
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              } catch (InterruptedException e) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                                  e.printStackTrace();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          // 足够消费
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          System.out.println("开始消费");
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          for (int i = 0; i &lt; index; i++) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              Food food = foods.remove(foods.size() - 1);
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              System.out.println("消费了一个" + food.getName() + foods.size());
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              }
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div></pre> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

##### [ 来自CODE的代码片][CODE 12]  snippet\_file\_0.txt #####

（三）创建一个客户类Customer

##### [ 来自CODE的代码片][CODE 13]  snippet\_file\_0.txt #####

（四）创建一个服务员类Waiter

##### [ 来自CODE的代码片][CODE 14]  snippet\_file\_0.txt #####

（五）创建主方法的调用类

<table style="border-collapse:collapse; border:none; margin:0px; padding:0px; table-layout:fixed"> 
 <tbody> 
  <tr> 
   <td style="border:none; margin:0px; padding:0px; vertical-align:top; background:rgb(238,238,238); width:50px"> <pre style="white-space: pre-wrap; word-wrap: break-word; border: none; border-radius: 0px; font-family: Menlo, &quot;Liberation Mono&quot;, Consolas, &quot;Courier New&quot;, &quot;andale mono&quot;, &quot;lucida console&quot;, monospace; margin-top: 0px; margin-bottom: 0px; padding: 10px 6px 10px 0px; width: auto; color: rgb(102, 102, 102); text-align: right; background: rgb(238, 238, 238); line-height: 16px !important;"><a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L1" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  1</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L2" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  2</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L3" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  3</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L4" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  4</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L5" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  5</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L6" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  6</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L7" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  7</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L8" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  8</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L9" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  9</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L10" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 10</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L11" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 11</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L12" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 12</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L13" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 13</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L14" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 14</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L15" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 15</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L16" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 16</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L17" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 17</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L18" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 18</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L19" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 19</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L20" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 20</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L21" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 21</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L22" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 22</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L23" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 23</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L24" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 24</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L25" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 25</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L26" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 26</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L27" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 27</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L28" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 28</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L29" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 29</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L30" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 30</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L31" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 31</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L32" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 32</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L33" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 33</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L34" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 34</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L35" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 35</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L36" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 36</a></pre></td> 
   <td style="border:none; margin:0px; padding:0px; vertical-align:top"> 
    <div style="border-left:1px solid rgb(222,226,227); overflow-x:auto; overflow-y:hidden"> 
     <pre style="word-wrap:normal; background-color:rgb(255,255,255); color:rgb(51,51,51); border:none; font-family:Menlo,&quot;Liberation Mono&quot;,Consolas,&quot;Courier New&quot;,&quot;andale mono&quot;,&quot;lucida console&quot;,monospace; margin-top:0px; margin-bottom:0px; padding:10px 0px; line-height:16px!important">
             
              
      <div style="padding:0px 10px">
       
               
              package com.xykj.producer_consumer;
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              public class MainClass {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  /**
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                   * 生产者消费者模式
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                   *
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                   * */
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  public static void main(String[] args) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">    
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      // 只实例化一个KFC对象，保证每一个服务员和用户在同一个KFC对象内
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      KFC kfc = new KFC();
             
              
      </div>
             
              
      <div style="padding:0px 10px">        
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      //实例化4个客户对象
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      Customers c1 = new Customers(kfc);
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      Customers c2 = new Customers(kfc);
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      Customers c3 = new Customers(kfc);
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      Customers c4 = new Customers(kfc);
             
              
      </div>
             
              
      <div style="padding:0px 10px">        
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      //实例化3个服务员对象
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      Waiter waiter1 = new Waiter(kfc);
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      Waiter waiter2 = new Waiter(kfc);
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      Waiter waiter3 = new Waiter(kfc);
             
              
      </div>
             
              
      <div style="padding:0px 10px">        
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      //让所有的对象的线程都开始工作
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      waiter1.start();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      waiter2.start();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      waiter3.start();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      c1.start();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      c2.start();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      c3.start();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      c4.start();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  }
             
              
      </div>
             
              
      <div style="padding:0px 10px">     
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              }
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div></pre> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

##### [ 来自CODE的代码片][CODE 15]  snippet\_file\_0.txt #####

六．示例五：设计四个线程对象对同一个数据进行操作，

两个线程执行减操作，两个线程执行加操作。

程序分析：1.创建一个ThreadAddSub类继承Thread，重写run方法

2.在run方法里面实现加和减的操作，每次操作后睡眠1秒

3.创建主方法调用类

（一）创建一个ThreadAddSub类

<table style="border-collapse:collapse; border:none; margin:0px; padding:0px; table-layout:fixed"> 
 <tbody> 
  <tr> 
   <td style="border:none; margin:0px; padding:0px; vertical-align:top; background:rgb(238,238,238); width:50px"> <pre style="white-space: pre-wrap; word-wrap: break-word; border: none; border-radius: 0px; font-family: Menlo, &quot;Liberation Mono&quot;, Consolas, &quot;Courier New&quot;, &quot;andale mono&quot;, &quot;lucida console&quot;, monospace; margin-top: 0px; margin-bottom: 0px; padding: 10px 6px 10px 0px; width: auto; color: rgb(102, 102, 102); text-align: right; background: rgb(238, 238, 238); line-height: 16px !important;"><a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L1" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  1</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L2" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  2</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L3" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  3</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L4" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  4</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L5" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  5</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L6" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  6</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L7" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  7</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L8" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  8</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L9" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow">  9</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L10" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 10</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L11" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 11</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L12" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 12</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L13" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 13</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L14" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 14</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L15" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 15</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L16" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 16</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L17" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 17</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L18" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 18</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L19" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 19</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L20" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 20</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L21" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 21</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L22" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 22</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L23" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 23</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L24" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 24</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L25" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 25</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L26" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 26</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L27" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 27</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L28" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 28</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L29" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 29</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L30" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 30</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L31" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 31</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L32" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 32</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L33" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 33</a>
<a href="http://blog.csdn.net/wenzhi20102321/article/details/52524545#L34" style="text-decoration: none; color: rgb(12, 137, 207);" rel="nofollow"> 34</a></pre></td> 
   <td style="border:none; margin:0px; padding:0px; vertical-align:top"> 
    <div style="border-left:1px solid rgb(222,226,227); overflow-x:auto; overflow-y:hidden"> 
     <pre style="word-wrap:normal; background-color:rgb(255,255,255); color:rgb(51,51,51); border:none; font-family:Menlo,&quot;Liberation Mono&quot;,Consolas,&quot;Courier New&quot;,&quot;andale mono&quot;,&quot;lucida console&quot;,monospace; margin-top:0px; margin-bottom:0px; padding:10px 0px; line-height:16px!important">
             
              
      <div style="padding:0px 10px">
       
               
              package com.xykj.add;
             
              
      </div>
             
              
      <div style="padding:0px 10px"> 
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              public class ThreadAddSub extends Thread {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  //判断要进行的操作
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  boolean operate = true;
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  //要操作的数
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  static int sum = 0;
             
              
      </div>
             
              
      <div style="padding:0px 10px">     
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  // 把操作运算通过构造方法传进来
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  public ThreadAddSub(boolean operate) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      super();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      this.operate = operate;
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  }
             
              
      </div>
             
              
      <div style="padding:0px 10px">     
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  @Override
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  public void run() {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      super.run();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      while (true) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          if (operate) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              sum+=5;
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              System.out.println("加后，sum="+sum);
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          } else {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              sum-=4;
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              System.out.println("减后，sum="+sum);
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          try {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              sleep(500);// 睡眠0.5秒
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          } catch (InterruptedException e) {
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                              e.printStackTrace();
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                          }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                      }
             
              
      </div>
             
              
      <div style="padding:0px 10px">     
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
                  }
             
              
      </div>
             
              
      <div style="padding:0px 10px">
       
               
              }
             
              
      </div></pre> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

##### [ 来自CODE的代码片][CODE 16]  snippet\_file\_0.txt #####

（二）创建主方法调用类

##### [ 来自CODE的代码片][CODE 17]  snippet\_file\_0.txt #####

线程示例总结：

代码块锁是一个防止数据发生错误的一个重要手段。

对象的统一性是非常重要的，这要想到对象的传入问题，

要操作的对象只能new一次，其他的操作都是对这个传入的对象进行的，

才能保证数据一致性，完整性和正确性。

练习题目：

1. （多线程）代码实现火车站4个卖票窗口同时买票的场景，输出示例：  
窗口1卖票  
窗口2卖票  
窗口1卖票  
...  
2. （线程同步）代码实现火车站4个窗口同时卖100张票的代码逻辑，同一个窗口不能卖同一  
张张票。  
3. （线程通信）小明打算去提款机上取钱，发现卡上没钱，这时候他告知妈妈去存钱，妈妈  
存了钱了，告知小明存好了可以取钱了。(PS:小明分多次取钱，每次取100，当发现钱不够  
100，就等待妈妈存钱，小明他妈每次存2000，当发现钱小于100就存钱，就存钱，并且  
通知小明去取钱，当大于100就等待小明钱不够是再存)  
4. (线程同步)设计四个线程对象对同一个数据进行操作，两个线程执行减操作，两个线程执行  
加操作。  
5. （线程通信）制作两个线程对象，要求用同步块的方式使第一个线程运行2次，然后将自己  
阻塞起来，唤醒第二个线程，第二个线程再运行2次，然后将自己阻塞起来，唤醒第一个线  
程……两个线程交替执行。  
6. （线程同步）设计4个线程，其中两个线程每次对j增加1，另外两个线程对j每次减少1。  
7. （线程通信）子线程循环10次，接着主线程循环100，接着又回到子线程循环10次，接着  
再回到主线程又循环100，如此循环50次。

[Java]: http://lib.csdn.net/base/java
[CODE]: https://code.csdn.net/snippets/1878743
[CODE 1]: https://code.csdn.net/snippets/1878783
[20160913122535531]: /images/20220613/402d027c09894694abe5298712d60d16.png
[CODE 2]: https://code.csdn.net/snippets/1878787
[CODE 3]: https://code.csdn.net/snippets/1878789
[CODE 4]: https://code.csdn.net/snippets/1878792
[CODE 5]: https://code.csdn.net/snippets/1878793
[20160913123938063]: /images/20220613/a852bbcf8553408db805b17f8323c68f.png
[CODE 6]: https://code.csdn.net/snippets/1878795
[CODE 7]: https://code.csdn.net/snippets/1878797
[CODE 8]: https://code.csdn.net/snippets/1878798
[CODE 9]: https://code.csdn.net/snippets/1878800
[CODE 10]: https://code.csdn.net/snippets/1878802
[20160913125028600]: /images/20220613/603ef989924f4a3a9ca4eefe852b2428.png
[CODE 11]: https://code.csdn.net/snippets/1878804
[CODE 12]: https://code.csdn.net/snippets/1878807
[CODE 13]: https://code.csdn.net/snippets/1878810
[CODE 14]: https://code.csdn.net/snippets/1878812
[CODE 15]: https://code.csdn.net/snippets/1878816
[CODE 16]: https://code.csdn.net/snippets/1878821
[CODE 17]: https://code.csdn.net/snippets/1878822