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1. (100 marks) What is the output produced by the program below?
1. (100 marks) What is the output produced by the program below?public class Rectangle{private double length;private double width;public Rectangle(double l, double w){length = l;width = w;}public double area() { return width*length; }public static void main(String [] args){Rectangle r = new Rectangle(1, 2); // first object instantiationSystem.out.println(r);System.out.println("Area=" + r.area());r = new Rectangle(2, 5); // second object instantiationSystem.out.println(r);System.out.println("Area=" + r.area());}}Discussion:• How many reference variables are there in the program?• What do you think are the two components of a reference value?• Is it possible to make use of the first Rectangle object instance (length=1 and width=2)again after the line “second ob ject instan tiation”?
