hey guys can anybody help me with this its for java Netbeans

hey guys,, can anybody help me with this? its for java Netbeans...

Write a Java method to multiply two N times N matrices (2D arrays). The two matrices are received as parameters. The result should be returned from the method.

Solution

import java.util.*;
public class allmain {
   static int mf, nf, ps, qs, add= 0, c1, d1, k1;
   public static void main(String[] args) {
       Scanner in = new Scanner(System.in);
       System.out.print(\"rows and col of 1st matrix : \");
   mf = in.nextInt();
   nf = in.nextInt();
  
   int first[][] = new int[mf][nf];
   int second[][]=null;
   int multiply[][]=null;
  
   System.out.print(\"Enter data : \");
  
   for(c1=0 ; c1<mf; c1++)
   {
   for(d1=0; d1<nf; d1++)
   {
   first[c1][d1] = in.nextInt();
   }
   }
     
   System.out.print(\"Enter rows and cols of 2nd matrix : \");
   ps = in.nextInt();
   qs = in.nextInt();
     
   if ( nf != ps )
   {
   System.out.print(\"same matrix size should not posible\");
   }
   else
   {
   second = new int[ps][qs];
   multiply = new int[mf][qs];
     
   System.out.print(\"Enter data\");
     
   for(c1=0; c1<ps; c1++)
   {
   for(d1=0; d1<qs; d1++)
   {
   second[c1][d1] = in.nextInt();
   }
   }
   }
   matrixmull(first,second,multiply);
   }
     
   private static void matrixmull(int[][] f, int[][] s,
           int[][] mult) {
         
       for(c1=0; c1<mf; c1++)
{
for(d1=0; d1<qs; d1++)
{   
for(k1=0; k1<ps; k1++)
{
add = add + f[c1][k1]*s[k1][d1];
}

mult[c1][d1] = add;
add= 0;
}
}

  
for(c1=0; c1<mf; c1++)
{
for(d1=0; d1<qs; d1++)
{
System.out.print(mult[c1][d1] + \"\\t\");
}
System.out.print(\"\ \");
}

  
      
   }
}

output:

rows and col of 1st matrix : 2
3
Enter data : 1
2
3
4
3
1
Enter rows and cols of 2nd matrix : 3
4
Enter data1
2
3
1
2
3
3
4
3
2
4
5
14   14   21   24  
13   19   25   21