Lektion3_1

class Vehicle
{
public:
  unsigned int get_number_of_wheels() const;
  unsigned int get_max_speed() const;

  Location& get_start_point() const;
  Location& get_destination() const;

protected:
  unsigned int number_of_wheels;
  unsigned int max_speed;
  Location start_point; //made-up class Location
  Location destination; //made-up class Location
};

class Passenger_Vehicle : public Vehicle
{
public:
  unsigned int get_number_of_passengers() const;
  unsigned int get_number_of_doors() const;

private:
  unsigned int number_of_passengers;
  unsigned int number_of_doors;
};


class Freight_Vehicle: public Vehicle
{
public:
  unsigned int get_max_payload() const;
  void load_freight_vehicle();
  Load& unload_freight_vehicle(); //made-up class Load

private:
  unsigned int max_payload;
};