Implement the InternPhone class constructor as described in Exercise 6.Exercise 6The follo...

Implement the InternPhone class constructor as described in Exercise 6.

Exercise 6

The following class represents a telephone number in the United States: // SPECIFICATION FILE (phone.h)

// SPECIFICATION FILE (phone.h)enum PhoneType (HOME, OFFICE, CELL, FAX, PAGE);class Phone{public:  Phone(newAreaCode, int newNumber, PhoneType newType);  void Write() const;private:  int areaCode;  int number;  PhoneType type;}

Using inheritance, we want to derive an international phone number class, InternPhone, from the Phone class. For this exercise, we assume that the only change necessary is to add a country code (an integer) that identifies the country or region. The public operations of InternPhone are Write, which reimplements the Write function from the base class, and a class constructor, which takes four parameters corresponding to the four member fields in the class. Write the class declaration for the InternPhone class.