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import java.util.Scanner;
public class MatrixOperations {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
// Input matrix A
System.out.println("Enter the number of rows and columns of matrix A:");
int rowsA = scanner.nextInt();
int colsA = scanner.nextInt();
int[][] matrixA = new int[rowsA][colsA];
System.out.println("Enter the elements of matrix A:");
for (int i = 0; i < rowsA; i++) {
for (int j = 0; j < colsA; j++) {
matrixA[i][j] = scanner.nextInt();
}
}
// Input matrix B
System.out.println("Enter the number of rows and columns of matrix B:");
int rowsB = scanner.nextInt();
int colsB = scanner.nextInt();
int[][] matrixB = new int[rowsB][colsB];
System.out.println("Enter the elements of matrix B:");
for (int i = 0; i < rowsB; i++) {
for (int j = 0; j < colsB; j++) {
matrixB[i][j] = scanner.nextInt();
}
}
// Perform matrix addition
if (rowsA == rowsB && colsA == colsB) {
System.out.println("Matrix Addition:");
for (int i = 0; i < rowsA; i++) {
for (int j = 0; j < colsA; j++) {
System.out.print(matrixA[i][j] + matrixB[i][j] + "\t");
}
System.out.println();
}
} else {
System.out.println("Matrix addition is not possible: dimensions mismatch.");
}
// Perform matrix subtraction
if (rowsA == rowsB && colsA == colsB) {
System.out.println("Matrix Subtraction:");
for (int i = 0; i < rowsA; i++) {
for (int j = 0; j < colsA; j++) {
System.out.print(matrixA[i][j] - matrixB[i][j] + "\t");
}
System.out.println();
}
} else {
System.out.println("Matrix subtraction is not possible: dimensions mismatch.");
}
// Perform matrix multiplication
if (colsA == rowsB) {
System.out.println("Matrix Multiplication:");
int[][] resultMatrix = new int[rowsA][colsB];
for (int i = 0; i < rowsA; i++) {
for (int j = 0; j < colsB; j++) {
for (int k = 0; k < colsA; k++) {
resultMatrix[i][j] += matrixA[i][k] * matrixB[k][j];
}
System.out.print(resultMatrix[i][j] + "\t");
}
System.out.println();
}
} else {
System.out.println("Matrix multiplication is not possible: columns of A must equal rows of B.");
}
scanner.close();
}
}
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