Question 6: Consider the code given below. What will the output be?

1class Rectangle{
2    double length, width;
3    public Rectangle(double l, double w) {
4        length = l;
5        width = w;
6    }
7    public Rectangle(Rectangle r){
8        length = r.length;
9        width = r.width;
10    }
11    public double perimeter(){
12        return  2 * (length + width);
13    }
14}
15public class ConTest {
16    public static void main(String[] args) {
17        Rectangle r1 = new Rectangle(6.0, 3.20);
18        Rectangle r2 = new Rectangle(r1);
19        Rectangle r3 = new Rectangle(r2);
20        r1.width = 3.0;
21        System.out.println(r1.perimeter());
22        System.out.println(r2.perimeter());
23        System.out.println(r3.perimeter());
24    }
25}