Delene i sortirane na chisla

import java.util.Arrays;
import java.util.Scanner;

public class ex1 {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);

        System.out.printf("Input the number of elements : ");
        int N = scan.nextInt();
        int[] Arr1 = new int[N];
        double[] Arr1a = new double[N];
        int[] Arr2 = new int[N];
        double[] Arr2a = new double[N];
        double[] Arr3 = new double[N];

        System.out.println();

        for (int i = 0; i < N; i++) {
            System.out.printf("Input element [%d] of Arr1: ", i);
            Arr1[i] = scan.nextInt();
            Arr1a[i] = Arr1[i];
        }
        System.out.println();

        for (int j = 0; j < N; j++) {
            System.out.printf("Input element [%d] of Arr2: ", j);
            Arr2[j] = scan.nextInt();
            Arr2a[j] = Arr2[j];
        }

        for (int b = 0; b < N; b++) {
            Arr3[b] = Arr1a[b] / Arr2a[b];
        }

        System.out.println();
        System.out.println("Results before sort: " + Arrays.toString(Arr3));

        //insersion sort
        for (int k = 1; k < N; k++) {
            double key = Arr3[k];
            int a = k - 1;

            while ((a >= 0) && (Arr3[a] > key)) {
                Arr3[a + 1] = Arr3[a];
                a--;
            }

            Arr3[a + 1] = key;
        }
        System.out.print("Results after sort: " + Arrays.toString(Arr3));
    }
}