错误和异常 分手后的思念是犯贱 2022-11-26 13:00 121阅读 0赞 异常和错误的基本概述: ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center] 异常的产生过程解析:![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 1] 异常的处理: ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 2] throw关键字: ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 3] ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 4] Objects非空判断requireNonNull方法: ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 5] throws关键字: ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 6] try …catch: ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 7] Throwable类中处理异常类的三种方法: ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 8] ![在这里插入图片描述][20200818005357880.png_pic_center] finally代码块: ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 9] 多异常的捕获处理: ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 10] finally中的return语句一定会返回,尽量避免在finally中使用return . ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 11] 子类重写父类方法时的注意事项: ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 12] 自定义异常: ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 13] [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center]: /images/20221124/e58398cadab8439387c4dc48d48f327d.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 1]: /images/20221124/873bb18698654ea5b8611d0666fb9754.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 2]: /images/20221124/8e197aa9e46e4da68c3e2c61f5054655.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 3]: /images/20221124/9a8fcc535ecd4181a9657932331e3cad.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 4]: /images/20221124/9be4782e62ef42cc84422c93763312b8.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 5]: /images/20221124/bac33b8d45564421be22836dd38ec85e.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 6]: /images/20221124/aa1bea52e0ac430ba6b010f63863a5f1.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 7]: /images/20221124/7a5cf73384c541629cea0d19e37f095d.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 8]: /images/20221124/dadf66156c0e4b41ae32689a37263f07.png [20200818005357880.png_pic_center]: /images/20221124/b38ec68fde5b440daabeca7aa73ffda8.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 9]: /images/20221124/e1b83ee94f5d4a2e8dc72699f2112422.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 10]: /images/20221124/5ca0b3a392684e508ce3fee053d4d865.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 11]: /images/20221124/343ea1f7b9a34892bb6015ada6120b40.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 12]: /images/20221124/28f778dcd59a43188b0ff773fd071dca.png [watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTY1Mjc2NQ_size_16_color_FFFFFF_t_70_pic_center 13]: /images/20221124/6dbe28299aec4b80899c7f3a0bf77690.png
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