c++ abstract

#include<stdio>

using namespace std

class Car{

    public :
        virtual int getNumWheels() = 0;
        virtual int getNumDoors() = 0;

};

class StationWagon : public Car{

    public:
        int getNumWheels() { cout << "Station wagon has 4 wheels" << endl; }
        int getNumDoors() {     cout << "Station wagon has 4 doors" << endl;}

        StationWagon() {}
        ~StationWagon();

};

int main()
{




    return 0;
}