PBO-4.2-2 RectangleMain

/**
 * Input dan output dari program.
 * Memasukkan besar panjang dan lebar dari persegi panjang.
 * Output berupa luas dan keliling dari persegi panjang.
 *
 * Benito Dannes
 */

import java.util.Scanner;

public class Main
{
    public static void main (String[] args)
    {
        String l,w;
        String color = "";
        int length, width;

        Scanner s = new Scanner (System.in);

        System.out.print ("Enter rectangle's color: ");
        color = s.nextLine();
        System.out.print ("Enter rectangle's length: ");
        l = s.nextLine();
        System.out.print ("Enter rectangle's width: ");
        w = s.nextLine();

        if (color.isEmpty())
        {
            if (l.isEmpty() && w.isEmpty())
            {
                Rectangle r = new Rectangle();
                System.out.println (r.toString());
                System.out.printf ("The rectangle's area is %.2f and the circumference is %.2f", r.getArea(), r.getCircumference());
            }
            else
            {
                if (l.isEmpty() || w.isEmpty())
                {
                    System.out.println ("Both length and width must be filled!");
                }
                else
                {
                    length = Integer.parseInt(l);
                    width = Integer.parseInt(w);
                    Rectangle r = new Rectangle (length, width);
                    System.out.println (r.toString());
                    System.out.printf ("The rectangle's area is %.2f and the circumference is %.2f", r.getArea(), r.getCircumference());
                }
            }
        }
        else
        {
            if (l.isEmpty() || w.isEmpty())
            {
                System.out.println ("Make sure you fill both length and width if you fill the color!");
            }
            else
            {
                length = Integer.parseInt(l);
                width = Integer.parseInt(w);
                Rectangle r = new Rectangle (color, length, width);
                System.out.println (r.toString());
                System.out.printf ("The rectangle's area is %.2f and the circumference is %.2f", r.getArea(), r.getCircumference());
            }
        }
    }
}