{JAVA} ~ no response on stdout runtime error ~ HackerRank problem

Below is the code for my if-statement, which is supposed to print out the String "Weird" or "Not Weird" depending on the value of n.

public class Solution {
    public static String weirdOrNotWeird(){

    int n;
    String ans = "";

    // if n is odd or n is even & 5 < n < 21 print Weird
    if((n % 2 == 1) || ((n % 2 == 0) && (n > 5 && n < 21))){
        System.out.println("Weird");
        ans = "Weird";

    // otherwise print Not Weird
    } else {
        System.out.println("Not Weird");
        ans = "Not Weird";
    } 
    return ans;
    }
}

When I compile, I get a runtime error that says "no response on stdout", and so doesn't give me an output.

private static final Scanner scanner = new Scanner(System.in);

public static void main(String[] args) {
    int n = scanner.nextInt();
    scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");

    scanner.close();
}

This is the rest of the code from the problem, but I don't have any errors in this part.