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Displaying Source Code(s)
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Program for Multithreaded Matrix Multiplication..
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import java.lang.*;
import java.io.*;
class MatMulti extends Thread
{
static int in1[][];
static int in2[][];
static int out[][];
static int n=2;
int row;
MatMulti(int i)
{
row=i;
this.start();
}
public void run()
{
int i,j;
for(i=0;i<n;i++)
{
out[row][i]=0;
for(j=0;j<n;j++)
out[row][i]=out[row][i]+in1[row][j]*in2[j][i];
}
}
public static void main(String args[])
{
int i,j;
BufferedReader br=new BufferedReader(new
InputStreamReader(System.in));
System.out.print("Enter the order of Matrix : ");
try
{
n=Integer.parseInt(br.readLine());
}catch(Exception e){}
in1=new int[n][n];
in2=new int[n][n];
out=new int[n][n];
System.out.println("Enter the First Matrix : ");
for(i=0;i<n;i++)
{
for(j=0;j<n;j++)
{
try
{
in1[i][j]=Integer.parseInt(br.readLine());
}catch(Exception e){}
}
}
System.out.println("Enter the Second Matrix : ");
for(i=0;i<n;i++)
{
for(j=0;j<n;j++)
{
try
{
in2[i][j]=Integer.parseInt(br.readLine());
}catch(Exception e){}
}
}
MatMulti mat[]=new MatMulti[n];
for(i=0;i<n;i++)
mat[i]=new MatMulti(i);
try
{
for(i=0;i<n;i++)
mat[i].join();
}catch(Exception e){}
System.out.println("OUTPUT :");
for(i=0;i<n;i++)
for(j=0;j<n;j++)
System.out.println(out[i][j]);
}
} |
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123
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