Assume the existence of a Building class. Define a derived class, ApartmentBuilding that contains four (4) data members: an integer named numFloors, an integer named unitsPerFloor, a boolean named hasElevator, and a boolean named hasCentralAir. There is a constructor containing parameters for the initialization of the above variables (in the same order as they appear above). There are also two functions: the first, getTotalUnits, accepts no parameters and returns the total number of units in the building; the second, isLuxuryBuilding accepts no parameters and returns true if the building has central air, an elevator and 2 or less units per floor.

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This is the answer:

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class ApartmentBuilding: public Building
{
private:
int numFloors;
int unitsPerFloor;
bool hasElevator;
bool hasCentralAir;
public:
ApartmentBuilding(int x,int y, bool b, bool c){numFloors=x; unitsPerFloor=y; hasElevator=b; hasCentralAir=c;};
int getTotalUnits();
bool isLuxuryBuilding();
};

int ApartmentBuilding::getTotalUnits(){return numFloors*unitsPerFloor;}
bool ApartmentBuilding:: isLuxuryBuilding(){if(hasCentralAir==true && hasElevator == true && unitsPerFloor<=2) return true;
else return false;}

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