This is a simple Java program that will multiply two matrices. Follow the steps and don't miss a

import java.util.Scanner;

public class JavaProgram

{

public static void main(String args[])

{

int m, n, p, q, sum = 0, c, d, k;

Scanner in = new Scanner(System.in);

System.out.print("Enter Number of Rows and Columns of First Matrix : ");

m = in.nextInt();

n = in.nextInt();

int first[][] = new int[m][n];

System.out.print("Enter First Matrix Elements : ");

for(c=0 ; c<m; c++)

{

for(d=0; d<n; d++)

{

first[c][d] = in.nextInt();

}

}

System.out.print("Enter Number of Rows and Columns of Second Matrix : ");

p = in.nextInt();

q = in.nextInt();

if ( n != p )

{

System.out.print("Matrix of the entered order can't be Multiplied..!!");

}

else

{

int second[][] = new int[p][q];

int multiply[][] = new int[m][q];

System.out.print("Enter Second Matrix Elements :\n");

for(c=0; c<p; c++)

{

for(d=0; d<q; d++)

{

second[c][d] = in.nextInt();

}

}

System.out.print("Multiplying both Matrix...\n");

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.print("Multiplication Successfully performed..!!\n"); System.out.print(" New Matrix is:\n");

for(c=0; c<m; c++)

{

for(d=0; d<q; d++)

{

System.out.print(multiply[c][d] + "\t");

}

System.out.print("\n");

}

}

}

}

This is what the output of the above program will look like...

Enter Number of Rows and Columns of Second Matrix : 3

3

Enter First Matrix Elements : 1

2

3

4

5

6

7

8

9

Enter Number of Rows and Columns of Second Matrix : 3

3

Enter Second Matrix Elements :9

8

7

6

5

4

3

2

1

Multiplying both matrix...

Multiplication Successfully performed..!!

New Matrix is :

30 24 18

84 69 54

128 114 90

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