Problem 7: Shape Hierarchy Create a class named “Shape” which has the two sub-classes: “Circle” and “Rectangle”. Create another class named “Square” which inherits “Rectangle” Class. The class...

Shape

String color (private)

public Shape() { //set color to “red”}

public Shape(String color) {// assign the color}

public double getArea() {//return -1}

Circle

double radius (private)

public Circle(double radius) {…}

public Circle(String color, double radius) {…}

public double getArea() {//returns area of the circle}

Rectangle

double dim1 (private), double dim2 (private)

public Rectangle(double dim1,double dim2){…}

public Rectangle(String color, double dim1,double dim2) {….}

public double getArea() {//returns area of the rectangle}

Square

public Square(double dim1) {…}

public Square(String color, double dim1) {…}

public double getArea() {//returns area of the square}

[Tips: For square dim1 and dim2 are equal]

public class Main {
    public static void main(String[] args) {
        Shape s;
        Circle c=new Circle(2);
        c.getArea();
        s=new Circle(3,"Green");
        s.getArea();
        Rectangle r= new Rectangle(“Blue",10,20);
        r.getArea();
        s= new Rectangle(20,30);
        s.getArea();
        s= new Square("Green",10);
        s.getArea();
        Square b=new Square(5);
        b.getArea();
    }
}