Java Program To Multiply Two Matrices Example
Chapter:
Miscellaneous
Last Updated:
25-06-2016 21:02:19 UTC
Program:
/* ............... START ............... */
import java.util.Scanner;
public class JavaMultiplyTwoMatricesExample {
public static void main(String args[]) {
int m, n, p, q, sum = 0, c, d, k;
Scanner scanner = new Scanner(System.in);
System.out.println("Enter the number of rows and columns of first matrix");
m = scanner.nextInt();
n = scanner.nextInt();
int first[][] = new int[m][n];
System.out.println("Enter the elements of first matrix");
for (c = 0; c < m; c++)
for (d = 0; d < n; d++)
first[c][d] = scanner.nextInt();
System.out.println("Enter the number of rows and columns of second matrix");
p = scanner.nextInt();
q = scanner.nextInt();
if (n != p)
System.out.println("Matrices with entered orders can't be multiplied with each other.");
else {
int second[][] = new int[p][q];
int multiply[][] = new int[m][q];
System.out.println("Enter the elements of second matrix");
for (c = 0; c < p; c++)
for (d = 0; d < q; d++)
second[c][d] = scanner.nextInt();
for (c = 0; c < m; c++) {
for (d = 0; d < q; d++) {
for (k = 0; k < p; k++) {
sum = sum + first[c][k] * second[k][d];
}
multiply[c][d] = sum;
sum = 0;
}
}
System.out.println("Multiplication of entered matrices:-");
for (c = 0; c < m; c++) {
for (d = 0; d < q; d++)
System.out.print(multiply[c][d] + "\t");
System.out.print("\n");
}
}
}
}
/* ............... END ............... */
Output
Enter the number of rows and columns of first matrix
2
2
Enter the elements of first matrix
2
3
1
4
Enter the number of rows and columns of second matrix
2
2
Enter the elements of second matrix
2
4
5
6
Multiplication of entered matrices:-
19 26
22 28
Tags
Multiply Two Matrices Example, Java