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                        <h1 class="page-title"><a href="/show-204653188.html" title="Java异常三：异常示例；try-catch-finally简介">Java异常三：异常示例；try-catch-finally简介</a></h1>
            
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                <time class="post-date" datetime="2022-01-06">2022-01-06</time>
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<h3>1.如果对可能产生异常的程序没有进行异常处理，程序运行时就可能会产生错误，造成程序中断，尤其是在参杂认为因素的时候，更加无法保证可能出现问题的程序能不出错</h3>
<p>下面一个异常例子：可以发现，如果对可能产生异常的程序没有进行异常处理，程序运行时就可能会产生错误，造成程序中断。</p>
<p><img alt="Java异常三：异常示例；try-catch-finally简介" src="/default/index/img?u=L2RlZmF1bHQvaW5kZXgvaW1nP3U9YUhSMGNITTZMeTl3YVdGdWMyaGxiaTVqYjIwdmFXMWhaMlZ6THpVeU1DOWtZVFZpTTJRNFlqazVNVGd5WTJVeU5HUXdORE5qTURjd1pXSmtPV1F6T0M1d2JtYz0=" title="Java异常三：异常示例；try-catch-finally简介"></p>
<p><img alt="Java异常三：异常示例；try-catch-finally简介" src="/default/index/img?u=L2RlZmF1bHQvaW5kZXgvaW1nP3U9YUhSMGNITTZMeTl3YVdGdWMyaGxiaTVqYjIwdmFXMWhaMlZ6THpFNE1TODFaR1JqT0RBd05USXlOMlV3TW1ZMk1tSTFOelV3WXpreU1UbGxOV0V3TlM1d2JtYz0=" title="Java异常三：异常示例；try-catch-finally简介"></p>
<hr>
<h3>2.对可能出错的程序进行异常处理是十分必要的，try-catch-finally简介</h3>
<p><img alt="Java异常三：异常示例；try-catch-finally简介" src="/default/index/img?u=L2RlZmF1bHQvaW5kZXgvaW1nP3U9YUhSMGNITTZMeTl3YVdGdWMyaGxiaTVqYjIwdmFXMWhaMlZ6THpRek5DOHhNbUl3WkRVMU1qUTFOamd4TkRVd01HRmlaVGN6TkRoallUUmlaRGhoTWk1d2JtYz0=" title="Java异常三：异常示例；try-catch-finally简介"></p>
<p>try块：用于捕获异常；可能出现异常的代码放在try块中；</p>
<p>catch块：用于处理try捕获到的异常；</p>
<p>finally块：无论是否发生异常，其都会执行；</p>
<p><img alt="Java异常三：异常示例；try-catch-finally简介" src="/default/index/img?u=L2RlZmF1bHQvaW5kZXgvaW1nP3U9YUhSMGNITTZMeTl3YVdGdWMyaGxiaTVqYjIwdmFXMWhaMlZ6THprd05DODNZMlExTUdabE5XSm1aR1JrTmpnMlpXTmxOR1psWVRCbE5qazVZVEJqTUM1d2JtYz0=" title="Java异常三：异常示例；try-catch-finally简介"></p>
 
                    
            
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