public class Findareas{

    public static void main (String []agrs){

        Figure f= new Figure(10 , 10);

        Rectangle r= new Rectangle(9 , 5);

        Figure figref;

        figref=f;

        System.out.println("Area is :"+figref.area());

        figref=r;

        System.out.println("Area is :"+figref.area());

    }

}

class Figure{

    double dim1;

    double dim2;

    Figure(double a , double b) {

        dim1=a;

        dim2=b;

    }

    Double area() {

        System.out.println("Inside area for figure.");

        return(dim1*dim2);

    }

}

class Rectangle extends Figure {

    Rectangle(double a, double b) {

        super(a ,b);

    }

    Double area() {

        System.out.println("Inside area for rectangle.");

        return(dim1*dim2);

    }

}