这是怎么回事：Exception in thread "main" java.util.InputMismatchException，数据类型感觉也没有错。

Question

import java.util.Scanner;
import java.lang.String;

public class NO16 {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt();
        String x = scan.next();
        int b = scan.nextInt();
        int c = scan.nextInt();
        int d = scan.nextInt();
        String y = scan.next();
        int e = scan.nextInt();
        int f = scan.nextInt();
        int g = scan.nextInt();
        int h = scan.nextInt();
        int i = scan.nextInt();
        String z = scan.next();
        int j = scan.nextInt();
        String k = null;
        int mod = (a + b*2 + c*3 + d*4 + e*5 + f*6 + g*7 + h*8 + i*9) % 11;
        if (mod == j){
            System.out.println("Right");
        }
        else {
            if (mod == 10){
                k = "X";
                String str1 = String.valueOf(a);
                String str2 = String.valueOf(b);
                String str3 = String.valueOf(c);
                String str4 = String.valueOf(d);
                String str5 = String.valueOf(e);
                String str6 = String.valueOf(f);
                String str7 = String.valueOf(g);
                String str8 = String.valueOf(h);
                String str9 = String.valueOf(i);
                System.out.println(str1 + x + str2 + str3 + str4 + y + str5 + str6 + str7 + str8 + str9 + z + k);
            }

        }
    }
}

Answer 1

同一行连续输入多个时，需要用空格隔开。
输入类型不匹配就会出现截图中的报错。
每个输入之间都用空格隔开，输入如下：

0 - 6 7 0 - 8 2 1 6 2 - 4