MatrixDiagonalSum

import java.util.Scanner;
public class matrix {
    public static void main(String[] args){

    Scanner sc = new Scanner(System.in);
    System.out.println("Enter a no.: ");
    int input = sc.nextInt();
    int[][] matrix = new int[input][input];
    int sumfd =0;
    int sumsd =0;

        for(int row =0;row<matrix[0].length;row++){

            for(int col=0;col<matrix[row].length;col++){
                matrix[row][col] = sc.nextInt();
            }
        }

        for(int roof=0;roof<matrix[0].length+8;roof++){ System.out.print("_"); }
        for(int row=0;row<matrix[0].length;row++){
            System.out.println();

            for(int col=0;col<matrix[row].length;col++){
                System.out.print(matrix[row][col]);

                if(row==col){ sumfd += matrix[row][row];}
                if(row+col==matrix.length-1) { sumsd += matrix[row][matrix.length-row-1]; }

                if(matrix[row][col] > 9){
                    System.out.print("|");
                }else{
                    System.out.print(" |");
                }
            }

        }
        System.out.println();
        for(int floor=0;floor<matrix[0].length+8;floor++){ System.out.print("¯"); }
        System.out.println();

        System.out.println("Sum of first diagonal: "+sumfd);
        System.out.println("Sum of second diagonal: "+sumsd);

    }

}