virtual_function.cpp

/*
Create a class shape with a pure virtual member function display (). Derive two classes circle and rectangle. With member function by overriding member function in base class shape to display the name of respective shape. Write main function to create objects of derived classes and call display function.
*/

#import <iostream>

using namespace std;

class Shape{
public:
  virtual void display() = 0;

};

class Circle: public Shape{
public:
  void display(){
    cout << "I am a circle" << endl;
  }
};

class Rectangle: public Shape{
public:
  void display(){
    cout << "I am a Rectangle" << endl;
  }
};

int main(){
  Circle c;
  Rectangle r;
  c.display();
  r.display();
  
  return 0;
}