强制性异常和非强制性异常-白红宇

强制性异常和非强制性异常

阅读量：306 次

发布时间：2019-03-03

本文共 316 字，大约阅读时间需要 1 分钟。

java的异常处理机制是一项相当灵活的技术。也是java的特色。项目做的够不够出色，很大一部分取决于异常的处理。如何自定义异常，是该try catch还是该throws，这些都是我们该注意的方面。

java中的异常分为两大类，强制性异常(CheckedException)和非强制性异常(UncheckedException)。而java中除了RuntimeException外，都是强制性异常。

强制性异常：所谓强制性异常就是在编写程序的过程中必需在抛出异常的部分try catch 或者向上throws异常。

非强制性异常：所谓非强制性异常就和上面相反了。不过你当然也可以try catch或者thows，只不过这不是强制性的。

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