VIRTUAL FUNCATION

 #include<iostream>

using namespace std;

class BasicCar

{

public:

 virtual void start(){cout<<"BasicCar started"<<endl;}

};

class AdvanceCar: public BasicCar

{

public:

 void start(){cout<<"AdvanceCar Started"<<endl;}

};

int main()

{

 BasicCar *p=new AdvanceCar();

 p->start();

}