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Derived Class

• A TravelClock differs from a Clock in three ways:
  • Its objects store the location and time difference.
  • The get_hours function of the TravelClock adds the time difference to the current time.
  • The get_location function returns the actual location, not the string "Local".
• When the TravelClock class inherits from the Clock class, it needs only to spell out these three differences.

  class TravelClock : public Clock
  {
  
  public:
     TravelClock(bool mil, string loc, double off);
     int get_hours() const;
     string get_location() const;
  private:
     string location;
     int time_difference;
  };
  

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