Getting Java Scanner class error

Question

Why I'm getting error in following Code? In the following code, getMaximumWinning is a function, which returns a positive integer.

*Exception in thread "main" java.util.NoSuchElementException
    at java.util.Scanner.throwFor(Scanner.java:862)
    at java.util.Scanner.next(Scanner.java:1485)
    at java.util.Scanner.nextInt(Scanner.java:2117)
    at java.util.Scanner.nextInt(Scanner.java:2076)*

Code:

public static void main(String args[])
{
    int TC;

    Scanner s1=new Scanner(System.in);

    TC= s1.nextInt();

    int N,i;
    int win[]=new int[10000];
    String ques,ans;
    while(TC>0)
    {  N=s1.nextInt();
       ques=s1.next();
       ans=s1.next();
         for(i=0;i<=N;i++)
         {   
             win[i]=s1.nextInt();
         }

        System.out.println(getMaximumWinning(ques, ans, win, N));
        TC--;
    }


}

Answer 1

java.util.NoSuchElementException 

indicates that you have no more elements presents in Scanner

before any s1.nextInt(); you should use s1.hasNextInt(); which returns boolean value depending on which you can decide what action to perform

if(s1.hasNextInt()){
    win[i]=s1.nextInt();
}