// inherit10.h			By: Aiman Hanna -  ©1993-2002 Aiman Hanna

#ifndef INHERIT10_H
#define INHERIT10_H



#include <iostream.h>

enum avl_colors { red, black, white, green };
enum yes_no { yes, no };

class Vehicle 
{
public:
	Vehicle( void );
	Vehicle( avl_colors, int  );

// Step #5 : Declare the function as virtual in the abstract class.
	virtual void ShowInfo( void ) = 0;   // This is enough to disallow
					     // declaring any object from 
					     // this class
					     // Is it a base class now? Why?
	int GetNumCyl( void );
	char* GetColor( void );
private:
	int numcyl;
	avl_colors  color; 

};


class Bus: public Vehicle
{
public: 
	Bus( avl_colors, int, yes_no );
	void ShowInfo( void );
       	yes_no HasBar ( void );
private: 
	yes_no barexist;

};

class Van: public Bus
{
public:
	Van( avl_colors, int, yes_no ); // last argument here is for turbo
	void ShowInfo( void );
	yes_no IsTurbo( void );
private:
	yes_no turbo;

};

#endif