Simple Java Code to add two matrices

Simple Java Program for Adding two matrices of any order

import java.util.Scanner;
public class AddTwoMatrixPostslush
{
       public static void main(String args[])
       {
          int m, n, c, d;
          Scanner in = new Scanner(System.in);
   
          System.out.println("Enter the number of rows and columns of matrix");
          m = in.nextInt();
          n  = in.nextInt();
   
          int first[][] = new int[m][n];
          int second[][] = new int[m][n];
          int sum[][] = new int[m][n];
   
          System.out.println("Enter the elements of first matrix");
   
          for (  c = 0 ; c < m ; c++ )
             for ( d = 0 ; d < n ; d++ )
                first[c][d] = in.nextInt();
   
          System.out.println("Enter the elements of second matrix");
   
          for ( c = 0 ; c < m ; c++ )
             for ( d = 0 ; d < n ; d++ )
                second[c][d] = in.nextInt();
   
          for ( c = 0 ; c < m ; c++ )
             for ( d = 0 ; d < n ; d++ )
                 sum[c][d] = first[c][d] + second[c][d];  //replace '+' with '-' to subtract matrices
   
          System.out.println("Sum of entered matrices:-");
   
          for ( c = 0 ; c < m ; c++ )
          {
             for ( d = 0 ; d < n ; d++ )
                System.out.print(sum[c][d]+"\t");
   
             System.out.println();
          }
       }
    }

Output :