class Shape {
    private double width;
    private double height;

    double getWidth() {
        return width;
    }

    double getHeight() {
        return height;
    }

    void setWidth(double w) {
        width = w;
    }

    void setHeight(double h) {
        height = h;
    }


    void showDimensions() {
        System.out.println("Weight of an object: " +width + "\nHeight of an object: " +height);
    }
}



class Rectangle extends Shape {

        boolean isSquare() {
            if (getWidth() == getHeight())
                return true;
            else
                return false;
        }

        double calculateArea() {
            return getWidth() * getHeight();
        }

    }

public class Hermetiq {
    public static void main(String args[]) {
        Rectangle r1 = new Rectangle();
        Rectangle r2 = new Rectangle();
        Rectangle r3 = new Rectangle();

        r1.setWidth(2.0);
        r1.setHeight(2.5);

        r2.setWidth(12.0);
        r2.setHeight(1.2);

        r3.setWidth(5.5);
        r3.setHeight(5.5);

        System.out.println("Information about dimensions of an rectangle object r1: ");
        r1.showDimensions();
        System.out.println("The area of an rectangle object r1: " + r1.calculateArea());
        System.out.println("If the rectangle is a square? " +r1.isSquare());

        System.out.println("Information about dimensions of an rectangle object r2: ");
        r2.showDimensions();
        System.out.println("The area of an rectangle object r2: " + r2.calculateArea());
        System.out.println("If the rectangle is a square? " +r2.isSquare());

        System.out.println("Information about dimensions of an rectangle object r3: ");
        r3.showDimensions();
        System.out.println("The area of an rectangle object r3: " + r3.calculateArea());
        System.out.println("If the rectangle is a square? " +r3.isSquare());


    }
}