Binary Cipher
//Program to find matrix multiplication
import java.util.*;
class Matrixmul
{
public static void main(String args[])
{
Scanner scr=new Scanner(System.in);
int m,n,p,q;
System.out.println(“nEnter the order of the Matrix A: “);
m=scr.nextInt();
n=scr.nextInt();
int a[][]=new int[m][n];
System.out.println(“nEnter the order of Matrix B: “);
p=scr.nextInt();
q=scr.nextInt();
int b[][]=new int[p][q];
int c[][]=new int[m][q];
if(n==p)
{
System.out.println(“nEnter elements into matrix A “);
for(int i=0;i<m;i++)
for(int j=0;j<n;j++)
a[i][j]=scr.nextInt();
System.out.println(“nEnter elements into matrix B “);
for(int i=0;i<p;i++)
for(int j=0;j<q;j++)
b[i][j]=scr.nextInt();
for(int i=0;i<m;i++)
for(int j=0;j<q;j++)
{
c[i][j]=0;
for(int k=0;k<n;k++)
c[i][j]=c[i][j]+(a[i][k]*b[k][j]);
}
System.out.println(“nAfter Multiplication resultent matrix is :”);
for(int i=0;i<n;i++)
{
for(int j=0;j<q;j++)
System.out.print(c[i][j]+” “);
System.out.println(“n”);
}
}
else
System.out.println(“nMatrix multiplication is not possible with given order”);
}
}
Output:
Enter the order of the Matrix A:
2
2
Enter the order of Matrix B:
2
2
Enter elements into matrix A
1 0 0 1
Enter elements into matrix B
1 2 3 4
After Multiplication resultant matrix is :
1 2
3 4