Assume the existence of a Phone class . Define a derived class , CameraPhone tha

Question

Assume the existence of a Phone class . Define a derived class , CameraPhone that contains two data members: an integer named , imageSize, representing the size in megapixels of each picture, and an integer named memorySize, representing the number of gigabytes in the camera's memory. There is a constructor that accepts two integer parameters corresponding to the above two data members and which are used to initialize the respective data members. There is also a function named numPictures that returns (as an integer ) the number of pictures the camera's memory can hold.

Explanation / Answer

class CameraPhone :public Phone {

    public:

    CameraPhone(int, int);

    int numPictures();

    private:

    int imageSize;

    int memorySize;

};

    CameraPhone::CameraPhone(int myimageSize, int mymemorySize) {

        imageSize = myimageSize;

        memorySize = mymemorySize;

    }

    int CameraPhone::numPictures() {

        return memorySize / imageSize;  

     }

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