Tag: 不匹配

Java InputMismatchException

我有这个代码，我想捕获字母exception，但它一直有这些错误： Exception in thread “main” java.util.InputMismatchException at java.util.Scanner.throwFor(Scanner.java:840) at java.util.Scanner.next(Scanner.java:1461) at java.util.Scanner.nextInt(Scanner.java:2091) at java.util.Scanner.nextInt(Scanner.java:2050) at exercise_one.Exercise.main(Exercise.java:17) 这是我的代码： System.out.print(“Enter the number of students: “); students = input.nextInt(); while (students <= 0) { try { System.out.print("Enter the number of students: "); students = input.nextInt(); } catch (InputMismatchException e) { System.out.print("Enter the number of students"); } }