polymorphism.cpp

#include<iostream>
using namespace std;
class Animal
{
	public:
		void virtual Speak()
		{
			//no code. . . 
		}	
};

class Cat : public Animal
{
	public:
		void Speak()
		{
			cout<<"Meao Meao"<<endl;
		}
};

class Dog : public Animal
{
	public:
		void Speak()
		{
			cout<<"Waof Waof"<<endl;
		}
};

int main()
{
	Cat cat;
	Dog dog;
	Animal* pet;
	
	pet = &dog;
	pet->Speak();
	
	pet = &cat;
	pet->Speak();
}