java - 输入不匹配异常是什么意思？

Question

Exception in thread "main" java.util.InputMismatchException

当我将它与扫描仪类一起使用时，它对我意味着什么？完整的堆栈跟踪是

Exception in thread "main" java.util.InputMismatchException
        at java.util.Scanner.throwFor(Unknown Source)
        at java.util.Scanner.next(Unknown Source)
        at java.util.Scanner.nextInt(Unknown Source)
        at java.util.Scanner.nextInt(Unknown Source)
        at ParseString.main(ParseString.java:9)

Answer 1

请参阅JavaDoc处的文档.

答案应该很明确:

Thrown by a Scanner to indicate that the token retrieved does not match the pattern for the expected type, or that the token is out of range for the expected type.