2011Q2.cpp

#include <iostream>

using namespace std;

class Shape {
protected:
  float area;
	float perimeter;
public:
	virtual void display();
	virtual string getShapeName() = 0;
};

class Rectangle : public Shape {
public:
	Rectangle(float width, float height);
	virtual string getShapeName();
};

class Circle : public Shape {
public:
	Circle(float radius);
	virtual string getShapeName();
};

// Part 1

void Shape::display() {
	cout << "Shape: " << getShapeName() << "\n"
		 << "Area: " << this->area << "\n"
		 << "Perimeter: " << this->perimeter << "\n";
}

Rectangle::Rectangle(float width, float height) {
	this->area = width*height;
	this->perimeter = width+width+height+height;
}

string Rectangle::getShapeName() {
	return "Rectangle";
}

Circle::Circle(float radius) {
	this->area = 3.14 * radius * radius;
	this->perimeter = 2 * 3.14 * radius;
}

string Circle::getShapeName() {
	return "Circle";
}

// Part 2

int main() {
	Rectangle rec = Rectangle(4,10);
	rec.display();
	
	cout << "\n";
	
	Circle cir = Circle(10);
	cir.display();
	
	return 0;
}