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2.b. matrics multiplication


b) Write a Java program to multiply two given matrices.
import java.lang.*;
import java.io.*;
class arraymul
{
  public static void main(String args[])throws IOException
  {
   BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
   system.out.print("enter no of rows");
   int m=Integer.parseInt(br.readLine());
   system.out.print("enter no of columns");
   int n=Integer.parseInt(br.readLine());
   int a[ ][ ]=new int[m][n];
int i,j,k;

for( i=0;i
{
 for(j=0;j
 {
  a[i][j]=Integer.parseInt(br.readLine());
  }
}
 System.out.print("enter no of rows");
 int p=Integer.parseInt(br.readLine());
 System.out.print("enter no of columns");
 int q=Integer.parseInt(br.readLine());
 int b[ ][ ]=new int[p][q];
 {
  for( i=0;i
 {
  for( j=0;j
 {
  b[i][j]=Integer.parseInt(br.readLine());
  }
 }
}
int c[][]=new int[m][i];
if(n==p)
{
for( i=0;i
{
for( j=0;j
{
c[i][j]=0;
for( k=0;k
{
c[i][j]=c[i][j]+(a[i][k]*b[k][j]);
}
}
}
for(i=0;i
{
for(j=0;j
{
System.out.println(c[i][j]);
}
}
}
}
} } 

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