// inherit9.h            		By: Aiman Hanna -  ©1993-2002 Aiman Hanna


#ifndef INHERIT9_H
#define INHERIT9_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 );
	int GetNumCyl( void );
	char* GetColor( void );
private:
	int numcyl;
	avl_colors  color; 

};


class Bus: public Vehicle
{
public: 
	Bus( avl_colors aclr = black , int cyl = 12, yes_no bar = no );
	
	void ShowInfo( void );
       	yes_no HasBar ( void );
private: 
	yes_no barexist;

};



class Van: public Bus
{
public:
	Van( avl_colors aclr = white , int cyl = 6, yes_no tur = no );
	
	void ShowInfo( void );
	yes_no IsTurbo( void );
private:
	yes_no turbo;

};

#endif