关于Scanner的问题

Question

public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        System.out.println("Please give the number of banks and the limit");
        int N=sc.nextInt();
        int limit=sc.nextInt();
        double[][] borrowers=new double[N][N];
        for (int i = 0; i < N; i++) {
            for (int j = 0; j < N; j++) {
                borrowers[i][j]=0;
            }
        }
        float[] Sum=new float[N];
        for (int i = 0; i < N; i++) {
            borrowers[i][i]=sc.nextDouble();
            for (int j = 0; j < sc.nextInt(); j++) {
                Sum[i] += (borrowers[i][sc.nextInt()]=sc.nextDouble());
                System.out.println(Sum[i]);
            }
        }
    }

输入的是

5 201
25 2 1 100.5 4 320.5

然后结果显示

Exception in thread "main" java.util.InputMismatchException
    at java.base/java.util.Scanner.throwFor(Scanner.java:939)
    at java.base/java.util.Scanner.next(Scanner.java:1594)
    at java.base/java.util.Scanner.nextInt(Scanner.java:2258)
    at java.base/java.util.Scanner.nextInt(Scanner.java:2212)
    at Exercise8.C8p17.main(C8p17.java:22)

各位能讲一下是哪里出了问题吗？

Answer 1

最后一个嵌套循环写错了吧，你如果要取出来用，就声明一个变量等于sc.nextInt或者nextDouble，不然每次nextInt或者nextDouble都会从输入重新读取一个数字，整个逻辑很乱