The C++ Program Structure

// the declaration of class POINT

class Point : public Location { // derived from class Location

// public derivation means that X and Y are protected within Point

protected:

Boolean Visible; // classes derived from Point will need access

public:

Point(int InitX, int InitY); // constructor

void Show(); // make the object visible

void Hide(); // make the object invisible

Boolean IsVisible(); // returns the value of the variable Visible

void MoveTo(int NewX, int NewY); // Change the Location data

};