異常在線程「主」 java.util.InputMismatchException使用掃描儀

Question

當我有這個節目扭轉字的順序，但輸入被弄亂了。這是我的輸出日誌。

1 
this is a trial 
Exception in thread "main" java.util.InputMismatchException 
    at java.util.Scanner.throwFor(Scanner.java:864) 
    at java.util.Scanner.next(Scanner.java:1485) 
    at java.util.Scanner.nextInt(Scanner.java:2117) 
    at java.util.Scanner.nextInt(Scanner.java:2076) 
    at Store_Credit.main(Store_Credit.java:13) 

Process finished with exit code 1 

而且，這裏是我的代碼：

import java.util.Scanner; 

public class Reverse_Words { 

    public static void main(String[] args) { 
     Scanner scanner = new Scanner(System.in); 
     int N; 
     N = scanner.nextInt(); 
     for(int i = 0; i < N; i++) { 
      int h = i+1; 
      String[] s = scanner.nextLine().split(" "); 
      System.out.print("Case #"+h+": "); 
      for(int j = s.length-1; j >=0; j++) { 
       System.out.print(s[j]+" "); 
      } 
      System.out.println(); 
     } 
    } 
} 

Answer 1

嘗試執行此檢查，如果你仍然可以在最後的錯誤

public static void main(String[] args) { 
     @SuppressWarnings("resource") 
     Scanner scanner = new Scanner(System.in); 
     int n; 
     System.out.println("enter number"); 
     n = scanner.nextInt(); 
     for(int i = 0; i < n; i++) { 
      int h = i+1; 

      System.out.println("enter string"); 

      String[] s = scanner1.nextLine().split(" "); 
      System.out.print(s.length); 
      System.out.print("Case #"+h+": "); 
      for(int j = s.length-1; j >=0; j--) { 
       System.out.print(s[j]+" "); 
      } 
      System.out.println(); 
     } 
    } 

遞減Ĵ值循環，即，J - （不是J ++）