In the previous post, written code for matrix transpose. In the current post, I have written a java program to perform a simple matrix addition and subtraction.

Below is the source code of the Java Program to Perform Matrix Multiplication,

Below is the source code of the Java Program to Perform Matrix Multiplication,

*MatrixAdditionSubtraction.java,*

```
package com.example.demo;
public class MatrixAdditionSubtraction {
public static void main(String[] args) {
int[][] a = { { 4, 5, 6 }, { 7, 8, 9 }, { 10, 11, 12 } };
int[][] b = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 } };
int rows = 3;
int columns = 3;
int[][] c = new int[rows][columns];
for (int i = 0; i < rows; i++) {
for (int j = 0; j < columns; j++) {
c[i][j] = a[i][j] + b[i][j];
}
}
System.out.println("The sum of the two matrices is");
for (int i = 0; i < rows; i++) {
for (int j = 0; j < columns; j++) {
System.out.print(c[i][j] + " ");
}
System.out.println();
}
for (int i = 0; i < rows; i++) {
for (int j = 0; j < columns; j++) {
c[i][j] = a[i][j] - b[i][j];
}
}
System.out.println("The subtraction of the two matrices is");
for (int i = 0; i < rows; i++) {
for (int j = 0; j < columns; j++) {
System.out.print(c[i][j] + " ");
}
System.out.println();
}
}
}
```

**Output:--**

The sum of the two matrices is

5 7 9

11 13 15

17 19 21

The subtraction of the two matrices is

3 3 3

3 3 3

3 3 3

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