Java program to add two matrices of any order. You can modify it to add any number of matrices.

## Addition of two matrix in Java

import java.util.Scanner;

{
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 the matrices:”);

for (c = 0; c < m; c++)
{
for (d = 0; d < n; d++)
System.out.print(sum[c][d] + \t);

System.out.println();
}
}
}

Output of program:

To add more than two matrices, you can create a Matrix class, create its objects, create a method that sums those objects, then call the method using a loop.