Java Program to find Matrix Addition
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Find Matrix Addition
In the following example, we will add the two given matrices (two-dimensional arrays).
Example
Java Compiler
public class myClass
{
public static void main(String[] args)
{
int i, j;
int[][] arr1 = {
{1, 1, 1},
{1, 1, 1},
{1, 1, 1}
};
int[][] arr2 = {
{2, 2, 2},
{2, 2, 2},
{2, 2, 2}
};
int[][] arr3 = new int[3][3];
System.out.println("Matrix A (3 x 3):");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
System.out.format("%d ", arr1[i][j]);
System.out.println();
}
System.out.println("\nMatrix B (3 x 3):");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
System.out.format("%d ", arr2[i][j]);
System.out.println("");
}
System.out.println("\nMatrix Additon (A + B):");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
arr3[i][j] = arr1[i][j] + arr2[i][j];
System.out.format("%d ", arr3[i][j]);
}
System.out.println();
}
}
}
Output
Matrix A (3 x 3):
1 1 1
1 1 1
1 1 1
Matrix B (3 x 3):
2 2 2
2 2 2
2 2 2
Matrix Additon (A + B):
3 3 3
3 3 3
3 3 3
In the following example, we will get the values for (3 x 3) Matrices A and B from the user and display the matrix addition.
Example
Java Compiler
import java.util.Scanner;
public class myClass
{
public static void main(String[] args)
{
int i, j;
int[][] arr1 = new int[3][3];
int[][] arr2 = new int[3][3];
int[][] arr3 = new int[3][3];
Scanner reader = new Scanner(System.in);
System.out.println("Enter Matrix A (3 x 3):");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
arr1[i][j] = reader.nextInt();
}
System.out.println("Enter Matrix B (3 x 3):");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
arr2[i][j] = reader.nextInt();
}
System.out.println("\nMatrix Additon (A + B):");
for(i=0; i<3; i++)
{
for(j=0; j<3; j++)
{
arr3[i][j] = arr1[i][j] + arr2[i][j];
System.out.format("%d ", arr3[i][j]);
}
System.out.println();
}
}
}
Output
Enter Matrix A (3 x 3):
2 2 2
2 2 2
2 2 2
Enter Matrix B (3 x 3):
4 4 4
4 4 4
4 4 4
Matrix Additon (A + B):
6 6 6
6 6 6
6 6 6
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