import java.util.Scanner;
public class MatrixMultiplication
{
public static void main(String args[])
{
int sum = 0;
Scanner in = new Scanner(System.in);
System.out.println("Enter the
number of rows and columns of matrixA :");
int r1 = in.nextInt();
int c1 = in.nextInt();
int matrixA[][] = new int[r1][c1];
System.out.println("Enter the
elements of matrixA :");
for (int i = 0; i < r1;
i++) {
for (int j = 0; j < c1;
j++) {
matrixA[i][j] =
in.nextInt();
}
}
System.out.println("Enter the
number of rows and columns of matrixB :");
int r2 = in.nextInt();
int c2 = in.nextInt();
if (c1 != r2) {
System.out
.println("Matrices with
entered orders can't be multiplied with each other.");
} else {
int matrixB[][] = new int[r2][c2];
int matrixC[][] = new int[r1][c2];
System.out.println("Enter the
elements of matrixB :");
for (int i = 0; i < r2;
i++) {
for (int j = 0; j < r2;
j++) {
matrixB[i][j]
= in.nextInt();
}
}
for (int i = 0; i < r1;
i++) {
for (int j = 0; j < c2;
j++) {
for (int k = 0; k < r2;
k++) {
sum =
sum + matrixA[i][k] * matrixB[k][j];
}
matrixC[i][j]
= sum;
sum = 0;
}
}
System.out.println("Product of
entered matrices:-");
for (int i = 0; i < r1;
i++) {
for (int j = 0; j < c2;
j++) {
System.out.print(matrixC[i][j]
+ "\t");
}
System.out.print("\n");
}
}
}
}
OUTPUT:
Enter the number of rows and columns of matrixA :
3 3
Enter the elements of matrixA :
4 5 6
7 8 9
9 8 6
Enter the number of rows and columns of matrixB :
3 3
Enter the elements of matrixB :
4 1 2
2 5 8
9 6 3
Product of entered matrices:-
80 65 66
125 101 105
106 85 100
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