membuat perkalian dan pembagian matriks menggunakan random pada java netbeans

selamat sore sahabat kreatif, kali ini saya akan memberikan codingan perkalian dan pembagian matriks menggunakan random pada java netbeans.

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package Praktikum_2;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

/**
 *
 * @author MOHAMMAD RAMLI
 * NIM     1310651201
 */
public class matriks_perkalian_random {
       public static void main(String[] args) {
               
         BufferedReader matriks = new BufferedReader (new InputStreamReader(System.in)) ; 
         
  int barisA = 0;
  int kolomA = 0;
  int barisB = 0;
  int kolomB = 0;
         
  String a = "" ;
  String b = "" ;
  String c = "" ;
  String d = "" ;
  
  
try {          
    System.out.print("Masukkan Baris A =  ");
   a = matriks.readLine();

   System.out.print("Masukkan Kolom A =  ");
   b = matriks.readLine();
   
   System.out.print("Masukkan Baris B =  ");
   c = matriks.readLine();
   
   System.out.print("Masukkan Kolom B =  ");
   d = matriks.readLine();
   
   }catch(IOException e){
       
       
   System.out.println("Data Yang Anda Masukkan Bukan Angka");
   
   } 
   
  barisA  =     Integer.parseInt(a);
  kolomA  =     Integer.parseInt(b);
  barisB  =     Integer.parseInt(c);
  kolomB  =     Integer.parseInt(d);
         
        int[][] matriksA = new int[barisA][kolomA];
        int[][] matriksB = new int[barisB][kolomB];
        int[][] matriksC = new int[barisA][kolomB];

        for (int x = 0; x < barisA; x++) {
            for (int y = 0; y < kolomA; y++) {
                matriksA[x][y] = (int) (Math.random() * 10+1);
            }
        }
       for (int i = 0; i < barisA; i++) {
            for (int j = 0; j < kolomA; j++) {
                matriksA[i][j] = (int) (Math.random() * 10+1);
            }
        }
        for (int i = 0; i < barisB; i++) {
            for (int j = 0; j < kolomB; j++) {
                matriksB[i][j] = (int) (Math.random() * 10+1);
            }
        }
        for (int i = 0; i < barisA; i++) {
            for (int j = 0; j < kolomB; j++) {
                matriksC[i][j] = 0;
                for (int k = 0; k < barisB; k++) {
                    matriksC[i][j] += (matriksA[i][k] * matriksB[k][j]);
                }
            }
        }
           System.out.println("\n");
        System.out.println("Matriks A");
        for (int i = 0; i < barisA; i++) {
            for (int j = 0; j < kolomA; j++) {
                System.out.print(matriksA[i][j] + " ");
            }
            System.out.println();
        }
           System.out.println("\n");
        System.out.println("Matriks B");
        for (int i = 0; i < barisB; i++) {
            for (int j = 0; j < kolomB; j++) {
                System.out.print(matriksB[i][j] + " ");
            }

            System.out.println();
        }
           System.out.println("\n");
        System.out.println("Hasil perkalian A x B :");
        for (int i = 0; i < barisA; i++) {
            for (int j = 0; j < kolomB; j++) {
                System.out.print(matriksC[i][j] + " ");
            }    
            System.out.println();
    }             
       }
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package Praktikum_2;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

/**
 *
 * @author MOHAMMAD RAMLI
 * NIM     1310651201
 */
public class matriks_pembagian_random {
       public static void main(String[] args) {
               
         BufferedReader matriks = new BufferedReader (new InputStreamReader(System.in)) ; 
         
  int barisA = 0;
  int kolomA = 0;
  int barisB = 0;
  int kolomB = 0;
         
  String a = "" ;
  String b = "" ;
  String c = "" ;
  String d = "" ;
  
  
try {          
    System.out.print("Masukkan Baris A =  ");
   a = matriks.readLine();

   System.out.print("Masukkan Kolom A =  ");
   b = matriks.readLine();
   
   System.out.print("Masukkan Baris B =  ");
   c = matriks.readLine();
   
   System.out.print("Masukkan Kolom B =  ");
   d = matriks.readLine();
   
   }catch(IOException e){
       
       
   System.out.println("Data Yang Anda Masukkan Bukan Angka");
   
   } 
   
  barisA  =     Integer.parseInt(a);
  kolomA  =     Integer.parseInt(b);
  barisB  =     Integer.parseInt(c);
  kolomB  =     Integer.parseInt(d);
         
        int[][] matriksA = new int[barisA][kolomA];
        int[][] matriksB = new int[barisB][kolomB];
        int[][] matriksC = new int[barisA][kolomB];

        for (int i = 0; i < barisA; i++) {
            for (int j = 0; j < kolomA; j++) {
                matriksA[i][j] = (int) (Math.random() * 10 + 1);
            }
        }
        for (int i = 0; i < barisB; i++) {
            for (int j = 0; j < kolomB; j++) {
                matriksB[i][j] = (int) (Math.random()*10 +1);
            }
        }
        for (int i = 0; i < barisA; i++) {
            for (int j = 0; j < kolomB; j++) {
                matriksC[i][j] = 0;
                for (int k = 0; k < barisB; k++) {
                    matriksC[i][j] -= (matriksA[i][k] / matriksB[k][j]);
                }
            }
        }
        System.out.println("Matriks A");
        for (int i = 0; i < barisA; i++) {
            for (int j = 0; j < kolomA; j++) {
                System.out.print(matriksA[i][j] + " ");
            }
            System.out.println();
        }
        System.out.println("Matriks B");
        for (int i = 0; i < barisB; i++) {
            for (int j = 0; j < kolomB; j++) {
                System.out.print(matriksB[i][j] + " ");
            }

            System.out.println();
        }
        System.out.println("Hasil Pembagian A : B :");
        for (int i = 0; i < barisA; i++) {
            for (int j = 0; j < kolomB; j++) {
                System.out.print(matriksC[i][j] + " ");
            }    
            System.out.println();
    }             
       }
}