Java Program to Add Two Matrices

Write a java program to add two matrices.

For example : Given two matrices A and B the sum of these two matrices is A + B.

{1, 5, 1} {1, 1, 9} {2, 6, 10}
{2, 8, 2} + {2, 2, 3} = {4, 10, 5}
{3, 7, 1} {5, 6, 4} {8, 13, 5}

Find common elements in three sorted arrays

Java Program to Add Two Matrices

In this program, I have created one method add in which i pass two matrices and the value of row and column as an argument. After adding two matrices, we print the final result.

I have added video tutorial link at the end of this post for better understanding.

Find Intersection of Two Arrays

/*
* Add Two Matrices in Java
*/
public class AddTwoMatrices {
public static void add(int arr1[][], int arr2[][], int n, int m) {
//Declared two dimensional array
int[][] arr3 = new int[n][m];
//Logic to add two matrices
for(int i = 0; i < n; i++) {
for(int j = 0; j < m; j++) {
//Sum
arr3[i][j] = arr1[i][j] + arr2[i][j];
}
}
// Traverse and print the result
for(int i = 0; i < n; i++) {
for(int j = 0; j < m; j++) {
System.out.print(arr3[i][j] + " ");
}
System.out.println("\n");
}		
}
public static void main(String[] args) {
//3*3 matrices
int arr1[][] = { {1, 5, 1}, 
{2, 8, 2},
{3, 7, 1}}; 
int arr2[][] = { {1, 1, 9},
{2, 2, 3}, 
{5, 6, 4}}; 
//Function call
add(arr1, arr2, 3, 3);
}
}

* Add Two Matrices in Java

public class AddTwoMatrices {

public static void add(int arr1[][], int arr2[][], int n, int m) {

//Declared two dimensional array

int[][] arr3 = new int[n][m];

//Logic to add two matrices

for(int i = 0; i < n; i++) {

for(int j = 0; j < m; j++) {

//Sum

arr3[i][j] = arr1[i][j] + arr2[i][j];

}

// Traverse and print the result

for(int i = 0; i < n; i++) {

for(int j = 0; j < m; j++) {

System.out.print(arr3[i][j] + " ");

}

System.out.println("\n");

}

public static void main(String[] args) {

//3*3 matrices

int arr1[][] = { {1, 5, 1},

{2, 8, 2},

{3, 7, 1}};

int arr2[][] = { {1, 1, 9},

{2, 2, 3},

{5, 6, 4}};

//Function call

add(arr1, arr2, 3, 3);

}

Find First Non-repeated Character in a String

In this video tutorial, I have explained how we can add two matrices. Also, I have explained how we can traverse two dimensional array. Also, I have explained java program to add two matrices.

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Java Program to Add Two Matrices