Diagonal Difference HackerRank Solution

DiagonalDifference.java

import java.util.*;

public class Solution {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int matrix[][] = new int[n][n];
        for(int i=0;i<n;i++){
            for(int j=0;j<n;j++){
                matrix[i][j] = sc.nextInt();
            }
        }
        
        int diag1 = 0, diag2 = 0;
        for(int i=0;i<n;i++){
            diag1+= matrix[i][i];
            int j = n-1-i;
            diag2+= matrix[i][j];
        }
        System.out.println(Math.abs(diag1-diag2));
        
    }
}