Iloczyn dwóch tablic

package lul;

import java.util.Arrays;
import java.util.Random;


public class LUL {


    public static void main(String[] args) {
        int iloczyn=0;
       Random r = new Random();
   int[]tt1 = new int[5];
   int[]tt2 = new int[5];
   for (int i=0; i<tt1.length;i++){
       tt1[i]=r.nextInt(10);
       tt2[i]=r.nextInt(10);
       iloczyn += tt1[i]*tt2[i];
   }
   System.out.println("tablica 1= "+Arrays.toString(tt1));
   System.out.println("Tablica 2= "+Arrays.toString(tt2));
   System.out.println("Wynik= "+iloczyn);
}