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<!DOCTYPE html>
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<h1 id="Hashmap"><a href="#Hashmap" class="headerlink" title="Hashmap"></a>Hashmap</h1><p>基于jdk1.8<br>
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1分
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5分
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<h1 id="ArrayList源码解读"><a href="#ArrayList源码解读" class="headerlink" title="ArrayList源码解读"></a>ArrayList源码解读</h1>
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<h1 id="Java异常体系"><a href="#Java异常体系" class="headerlink" title="Java异常体系"></a>Java异常体系</h1><p><img src="https://nowcodercyx.oss-cn-beijing.aliyuncs.com/Exception.png" alt="Alt text"></p>
<h2 id="什么是异常"><a href="#什么是异常" class="headerlink" title="什么是异常"></a>什么是异常</h2><p>异常是阻止程序正确执行的错误事件，只要在Java语句执行中产生了异常，一个异常对象就会被创建，JRE就会寻找处理程序来处理异常，如果有<br>正确的处理程序，异常就会被处理程序接管，否则将引发运行环境异常，JRE停止运行。<br>
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