Partition of Arrays

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

public class PartitionOfArrays {

    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);
        System.out.printf("Input the number of elements : ");
        int N = Integer.parseInt(scan.nextLine());
        double[] Arr1 = new double[N];
        double[] Arr2 = new double[N];
        double[] Arr3 = new double[N];

        System.out.println();

        for (int i = 0; i <= Arr1.length - 1; i++) {
            System.out.printf("Input element [%d] of Arr1: ", i);
            Arr1[i] = Integer.parseInt(scan.nextLine());
        }
        System.out.println();

        for (int j = 0; j <= Arr2.length - 1; j++) {
            System.out.printf("Input element [%d] of Arr2: ", j);
            Arr2[j] = Integer.parseInt(scan.nextLine());

            Arr3[j] = Arr1[j] / Arr2[j];
            Arr3[j] = Arr3[j] * 100;
            Arr3[j] = Math.round(Arr3[j]);
            Arr3[j] = Arr3[j] / 100;
        }

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

        for (int k = 1; k < Arr3.length; k++) {
            double key = Arr3[k];
            int a = k - 1;

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

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