22 lines
756 B
Markdown
22 lines
756 B
Markdown
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---
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title: Finally
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localeTitle: 最后
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---
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## 最后
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当try块退出时，finally块总是执行。这确保即使发生意外异常也会执行finally块。但最终不仅仅是异常处理有用 - 它允许程序员避免因返回，继续或中断而意外绕过清理代码。将清理代码放在finally块中总是一种很好的做法，即使没有预期的例外情况也是如此。
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**_例：_**
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```java
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try {
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// Normal execution path
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throw new EmptyStackException();
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} catch (ExampleException ee) {
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// deal with the ExampleException
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} finally {
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// This optional section is executed upon termination of any of the try or catch blocks above,
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// except when System.exit() is called in "try" or "catch" blocks;
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}
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```
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