Write a program to input a matrix of size m by n and print the product obtained when multiplied by its transpose
<h2>Output</h2>
Enter the number of rows:
2
Enter the number of columns:
3
Enter the values for the array:
12
21
11
13
54
23
Original Array:
12 21 11
13 54 23
Transpose Array:
12 13
21 54
11 23
Multiplied Array:
706 1543
1543 3614import java.io.*;
public class Transpose_Multiply
{
public static void main()throws IOException
{
BufferedReader r = new BufferedReader(new InputStreamReader(System.in));
int m, n;
System.out.println("Enter the number of rows:");
m = Integer.parseInt(r.readLine());
System.out.println("Enter the number of columns:");
n = Integer.parseInt(r.readLine());
int a[][] = new int[m][n], b[][] = new int[n][m], i, j, s=0, k;
System.out.println("Enter the values for the array:");
for(i=0;i < m;i++)
{
for(j=0;j < n;j++)
{ //Taking the values of the array from the user
a[i][j] = Integer.parseInt(r.readLine());
}
}
for(i=0;i < m;i++)
{
for(j=0;j < n;j++)
{ //Storing the transpose of the array in array B
b[j][i] = a[i][j];
}
}
int c[][] = new int[m][m];
for(i=0;i < m;i++)
{
for(j=0;j < m;j++)
{ //Multiplying the two arrays using matrix
//Multiplication rule
s=0;
for(k=0;k < n;k++)
{
s+=a[i][k]*b[k][j];
}
c[i][j] = s;
}
}
//Printing the various arrays
System.out.println("Original Array:");
for(i=0;i < m;i++)
{
for(j=0;j < n;j++)
{
System.out.print(a[i][j]+"t");
}
System.out.println();
}
//Printing the various arrays
System.out.println("Transpose Array:");
for(i=0;i < n;i++)
{
for(j=0;j < m;j++)
{
System.out.print(b[i][j]+"t");
}
System.out.println();
}
//Printing the various arrays
System.out.println("Multiplied Array:");
for(i=0;i < m;i++)
{
for(j=0;j < m;j++)
{
System.out.print(c[i][j]+"t");
}
System.out.println();
}
}
}