Lombok：让JAVA代码更优雅

╰+哭是因爲堅強的太久メ 2022-06-08 11:18 184阅读 0赞

## Lombok简介 ##

> Project Lombok makes java a spicier language by adding ‘handlers’ that know >how to build and compile simple, boilerplate-free, not-quite-java code.

如Github上项目介绍所言，Lombok项目通过添加“处理程序”，使java成为一种更为简单的语言。作为一个Old Java Developer,我们都知道我们经常需要定义一系列的套路，比如定义如下的格式对象。

我们往往需要定义一系列的Get和Set方法最终展示形式如：

那我们有没有可以简化的办法呢，第一种就是使用IDEA等IDE提供的一键生成的快捷键，第二种就是我们今天介绍的 Lombok项目：

Wow…这样就可以完成我们的需求，简直是太棒了，仅仅需要几个注解，我们就拥有了完整的GetSet方法，还包含了ToString等方法的生成。

## Lombok安装 ##

整个Lombok只有一个Jar包，可到这里下载：[https://projectlombok.org/download][https_projectlombok.org_download]

Lombok支持多种使用安装方式，这里我们讲最常见的对两大IDE的支持：

### Eclipse （含延伸版本） ###

双击打开 lombok.jar （前提：你得装了JDK）, 可见如下页面点击 Install/Update：

[![java-lombo-1-1.png][]][java-lombo-1-1.png]

恭喜你，已经安装成功了。我们打开 Eclipse 的 About 页面我们可以看见。

[![java-lombo-1-2.png][]][java-lombo-1-2.png]

### IntelliJ IDEA ###

*  定位到 File > Settings > Plugins
 *  点击 Browse repositories…
 *  搜索 Lombok Plugin
 *  点击 Install plugin
 *  重启 IDEA

更多安装请参考：[https://projectlombok.org/][https_projectlombok.org]

## Lombok使用 ##

Lombok 其实也不能算是一个特别新的项目，从 2011 开始在中心仓库提供支持，现在也分为 stable 和 experimental 两个版本，本文侧重介绍 stable 功能：

### val ###

如果对其他的语言有研究的会发现，很多语言是使用 var 作为变量申明，val作为常量申明。这里的val也是这个作用。

翻译成 Java 程序是：

作者注：也就是类型推导啦。

### @NonNull ###

Null 即是罪恶

翻译成 Java 程序是：

### @Cleanup ###

自动化才是生产力

翻译成 Java 程序是：

作者注： JKD7里面就已经提供 try with resource

### @Getter/@Setter ###

再也不写 `public int getFoo() {return foo;}`

翻译成 Java 程序是：

### @ToString ###

Debug Log 最强帮手

翻译后：

作者注：其实和 org.apache.commons.lang3.builder.ReflectionToStringBuilder 很像。

### @NoArgsConstructor, @RequiredArgsConstructor and @AllArgsConstructor ###

翻译后：

### @Data ###

这个就相当的简单啦，因为我们发现`@ToString`, `@EqualsAndHashCode`, `@Getter` 都很常用，这个一个注解就相当于

### @Value ###

翻译后：

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      85
     
      
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      86
     
      
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      87
     
      
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      88
     
      
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      89
     
      
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      90
     
      
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      91
     
      
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      92
     
      
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      93
     
      
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      94
     
      
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      95
     
      
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      96
     
      
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      98
     
      
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      101
     
      
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      102
     
      
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      103
     
      
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      105
     
      
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      106
     
      
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      107
     
      
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      108
     
      
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      109
     
      
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      110
     
      
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      112
     
      
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      113
     
      
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      114
     
      
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      115
     
      
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      116
     
      
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      117
     
      
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      118
     
      
     </div></pre> </td> 
   <td style="padding:10px 20px 10px 0px; margin:0px; border:none; outline:0px; font-style:inherit; font-family:inherit; font-size:16px; vertical-align:middle"> <pre style="overflow:auto; font-family:inherit; margin-top:0px; margin-bottom:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; vertical-align:baseline">
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline"><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">class</span> <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(255,255,255)">ValueExample</span> </span>{
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">private</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> String name;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">private</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">int</span> age;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">private</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">double</span> score;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">protected</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> String[] tags;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(117,113,94)">@java</span>.beans.ConstructorProperties({
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">"name"</span>, 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">"age"</span>, 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">"score"</span>, 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">"tags"</span>})
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline"><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">ValueExample</span><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">(String name, <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">int</span> age, <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">double</span> score, String[] tags)</span> </span>{
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.name = name;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.age = age;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.score = score;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.tags = tags;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
        }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline"><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> String <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">getName</span><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">()</span> </span>{
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.name;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
        }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline"><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">int</span> <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">getAge</span><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">()</span> </span>{
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.age;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
        }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline"><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">double</span> <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">getScore</span><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">()</span> </span>{
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.score;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
        }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> String[] getTags() {
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.tags;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
        }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(117,113,94)">@java</span>.lang.
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">Override</span>
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">boolean</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">equals</span>
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">(Object o)</span> {
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">if</span> (o == 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>) 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">true</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">if</span> (!(o 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">instanceof</span> ValueExample)) 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">false</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> ValueExample other = (ValueExample)o;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> Object 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>$name = 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.getName();
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> Object other$name = other.getName();
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">if</span> (
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>$name == 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">null</span> ? other$name != 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">null</span> : !
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>$name.equals(other$name)) 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">false</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">if</span> (
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.getAge() != other.getAge()) 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">false</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">if</span> (Double.compare(
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.getScore(), other.getScore()) != 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">0</span>) 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">false</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">if</span> (!Arrays.deepEquals(
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.getTags(), other.getTags())) 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">false</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">true</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
        }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(117,113,94)">@java</span>.lang.
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">Override</span>
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">int</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">hashCode</span>
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">()</span> {
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">int</span> PRIME = 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">59</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">int</span> result = 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">1</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> Object $name = 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.getName();
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
          result = result * PRIME + ($name == 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">null</span> ? 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">43</span> : $name.hashCode());
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
          result = result * PRIME + 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.getAge();
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">long</span> $score = Double.doubleToLongBits(
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.getScore());
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
          result = result * PRIME + (
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">int</span>)($score &gt;&gt;&gt; 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">32</span> ^ $score);
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
          result = result * PRIME + Arrays.deepHashCode(
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.getTags());
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> result;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
        }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(117,113,94)">@java</span>.lang.
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">Override</span>
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> String 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">toString</span>
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">()</span> {
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">"ValueExample(name="</span> + getName() + 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">", age="</span> + getAge() + 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">", score="</span> + getScore() + 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">", tags="</span> + Arrays.deepToString(getTags()) + 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">")"</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
        }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">ValueExample <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">withAge</span><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">(<span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">int</span> age)</span> </span>{
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.age == age ? 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span> : 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">new</span> ValueExample(name, age, score, tags);
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
        }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">  
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">static</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline"><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">class</span> <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(255,255,255)">Exercise</span>&lt;<span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(255,255,255)">T</span>&gt; </span>{
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">private</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> String name;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">private</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> T value;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline"><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">private</span> <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">Exercise</span><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">(String name, T value)</span> </span>{
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.name = name;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.value = value;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
          }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">static</span> &lt;T&gt; 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">Exercise&lt;T&gt; <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">of</span><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">(String name, T value)</span> </span>{
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">new</span> Exercise&lt;T&gt;(name, value);
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
          }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline"><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> String <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">getName</span><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">()</span> </span>{
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.name;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
          }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline"><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> T <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">getValue</span><span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">()</span> </span>{
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.value;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
          }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(117,113,94)">@java</span>.lang.
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">Override</span>
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">boolean</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">equals</span>
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">(Object o)</span> {
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">if</span> (o == 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>) 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">true</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">if</span> (!(o 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">instanceof</span> ValueExample.Exercise)) 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">false</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> Exercise&lt;?&gt; other = (Exercise&lt;?&gt;)o;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> Object 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>$name = 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.getName();
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> Object other$name = other.getName();
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">if</span> (
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>$name == 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">null</span> ? other$name != 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">null</span> : !
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>$name.equals(other$name)) 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">false</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> Object 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>$value = 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.getValue();
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> Object other$value = other.getValue();
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">if</span> (
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>$value == 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">null</span> ? other$value != 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">null</span> : !
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>$value.equals(other$value)) 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">false</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">true</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
          }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(117,113,94)">@java</span>.lang.
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">Override</span>
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">int</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">hashCode</span>
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">()</span> {
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">int</span> PRIME = 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">59</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">int</span> result = 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">1</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> Object $name = 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.getName();
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
            result = result * PRIME + ($name == 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">null</span> ? 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">43</span> : $name.hashCode());
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">final</span> Object $value = 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">this</span>.getValue();
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
            result = result * PRIME + ($value == 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">null</span> ? 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">43</span> : $value.hashCode());
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> result;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
          }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(117,113,94)">@java</span>.lang.
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">Override</span>
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">    
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">public</span> String 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">toString</span>
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline">()</span> {
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">      
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:bold; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(249,38,114)">return</span> 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">"ValueExample.Exercise(name="</span> + getName() + 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">", value="</span> + getValue() + 
      
       
      <span style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; color:rgb(166,226,46)">")"</span>;
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
          }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
        }
     
      
     </div>
     
      
     <div style="margin:0px; padding:0px; border:0px; outline:0px; font-weight:inherit; font-style:inherit; font-family:inherit; vertical-align:baseline; height:1.6em">
      
       
      }
     
      
     </div></pre> </td> 
  </tr> 
 </tbody> 
</table>

我们发现了 @Value 就是 @Data 的不可变版本。至于不可变有什么好处。可有参看此篇（[https://blogs.msdn.microsoft.com/ericlippert/2007/11/13/immutability-in-c-part-one-kinds-of-immutability/）][https_blogs.msdn.microsoft.com_ericlippert_2007_11_13_immutability-in-c-part-one-kinds-of-immutability]

### @Builder ###

我的最爱

builder是现在比较推崇的一种构建值对象的方式。

作者注：生成器模式

### @SneakyThrows ###

to RuntimeException 小助手

翻译后

很好的隐藏了异常，有时候的确会有这样的烦恼，从某种程度上也是遵循的了 let is crash

### @Synchronized ###

翻译后

这个就比较简单直接添加了synchronized关键字就Ok啦。不过现在JDK也比较推荐的是 Lock 对象，这个可能用的不是特别多。

### @Getter(lazy=true) ###

节约是美德

翻译后：

### @Log ###

再也不用写那些差不多的LOG啦

翻译后：

## Lombok原理 ##

说道 Lombok，我们就得去提到 JSR 269: Pluggable Annotation Processing API ([https://www.jcp.org/en/jsr/detail?id=269][https_www.jcp.org_en_jsr_detail_id_269]) 。JSR 269 之前我们也有注解这样的神器，可是我们比如想要做什么必须使用反射，反射的方法局限性较大。首先，它必须定义@Retention为RetentionPolicy.RUNTIME，只能在运行时通过反射来获取注解值，使得运行时代码效率降低。其次，如果想在编译阶段利用注解来进行一些检查，对用户的某些不合理代码给出错误报告，反射的使用方法就无能为力了。而 JSR 269 之后我们可以在 Javac的编译期利用注解做这些事情。所以我们发现核心的区分是在 运行期 还是 编译期。

[![java-lombo-1-3.png][]][java-lombo-1-3.png]

从上图可知，Annotation Processing 是在解析和生成之间的一个步骤。

[![java-lombo-1-4.png][]][java-lombo-1-4.png]

上图是 Lombok 处理流程，在Javac 解析成抽象语法树之后(AST), Lombok 根据自己的注解处理器，动态的修改 AST，增加新的节点(所谓代码)，最终通过分析和生成字节码。

关于原理我们大致上的描述下，如果有兴趣可以参考下方文档。

*  [jdk-compilation-overview][]
 *  [Project Lombok: Creating Custom Transformations][Project Lombok_ Creating Custom Transformations]

[https_projectlombok.org_download]: https://projectlombok.org/download
[java-lombo-1-1.png]: /images/20220608/310cc5a92c9e4015be6fdf6fc6268866.png
[java-lombo-1-2.png]: /images/20220608/79303fd009e648d4b12a830f8aa3d441.png
[https_projectlombok.org]: https://projectlombok.org/
[https_blogs.msdn.microsoft.com_ericlippert_2007_11_13_immutability-in-c-part-one-kinds-of-immutability]: https://blogs.msdn.microsoft.com/ericlippert/2007/11/13/immutability-in-c-part-one-kinds-of-immutability/%EF%BC%89
[https_www.jcp.org_en_jsr_detail_id_269]: https://www.jcp.org/en/jsr/detail?id=269
[java-lombo-1-3.png]: /images/20220608/0ef08ef3c36541fa80e0a93339dfbc8b.png
[java-lombo-1-4.png]: /images/20220608/7798e5c138b24146ae33ad67100d7c4b.png
[jdk-compilation-overview]: http://openjdk.java.net/groups/compiler/doc/compilation-overview/index.html
[Project Lombok_ Creating Custom Transformations]: http://notatube.blogspot.jp/2010/12/project-lombok-creating-custom.html