java中catch括号里面应该怎么办

Question

catch后面的括号中怎么才能知道怎么写，比如：catch（InputMismatchExpection e）中InputMismatchExpection是怎么来的，新手求解

Answer 1

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Answer 2

ide工具会自动补全。如果自己想知道需要看文档。每个异常都有原因，比如除0，就是算术异常，传入的值可能类型不匹配，就是inputMismatch异常自己多积累