Question

Create a class hierarchy to be used in a university setting. The classes are as follows: The base class is Person. The class should have 3 data members: personID (integer), firstName(string), and lastName(string). The class should also have a static data member called nextID which is used to assign an ID number to each object created (personID). All data members must be private. Create the following member functions: o Accessor functions to allow access to first name and last name (updates and retrieval). These functions should be public. o Create a getID function to retrieve the person ID of the person. This function should be public. The user of the class or any derived class should not have the ability to update personID o Create a constructor with two arguments(first name and last name) with default values. o Create a public member function Print to display information stored in the object. o Make this class an abstract class. Create the Student class as a derived class from the Person class. This class should have two additional data members to keep track of a student's GPA (float) and admission term (string - eg. Fall 2019). o Create public accessor functions to allow access to the GPA and admission term. The setGPA function should return true if the value of the GPA is between 0 and 4.0(inclusive) and false otherwise. Set the GPA to zero if an invalid value is provided o Override the function Print to print the student information. Create the Faculty class as a derived class from the Person class. This class should have one additional data member to keep track of the year the faculty was hired (string - eg. 2019) o Create a public accessor function to allow access to the hire year. o Override the function Print to print the faculty information. After defining the classes in this hierarchy, write a program that creates objects of each class and tests their member functions.

Answer 1

//Person.h

#ifndef PERSON
#define PERSON
#include
#include

using namespace std;

class Person{
  
   //Member variables
   private:
      
       string firstName,lastName;
       int personID;
       static int nextID;
  
   //Member functions  
   public:
      
       Person();
       Person(string first,string last);
       void setFirstName(string first);
       string getFirstName();
       void setLastName(string last);
       string getLastName();
       int getID();
       virtual void Print()=0;
          
};

#endif

//Person.cpp

#include "Person.h"

using namespace std;

Person::Person() //constructor
{
   nextID;
   personID=nextID;
  
}

Person::Person(string first,string last) //Parameterised contructor
{
   firstName = first;
   lastName = last;
   nextID;
   personID=nextID;
  
}

void Person::setFirstName(string first)
{
   firstName = first;
}
      
//Accessor Method  
string Person::getFirstName()
{
   return firstName;
}

void Person::setLastName(string last)
{
   lastName = last;
}

//Accessor Method
string Person::getLastName()
{
   return lastName;
}

//Accessor Method
int Person::getID()
{
   return personID;
}

void Person::Print()
{
   cout<<"Name of the person: "<getFirstName()<<" "<getLastName()<    cout<<"Id: "<getID();
}

//Student.h

#ifndef STUDENT
#define STUDENT
#include "person.h"

using namespace std;

//Inheriting Person

class Student : public Person{
  
   //Member variables  
   private:
       float GPA;
       string term;
  
   //Member functions  
   public:
      
       bool setGPA(float);
       float getGPA();
      
       string getTerm();
       void setTerm(string);
      
       void Print();
  
};

#endif

//Student.cpp

#include "student.h"

using namespace std;

bool Student::setGPA(float GPA)
{
   if(GPA>0 && GPA<=4.0)
   {
       this->GPA=GPA;
       return true;
   }
   else{
       this->GPA=0;
       return false;
   }
}
      

//Accessor Method      
float Student::getGPA()
{
   return GPA;
}
  
//Accessor Method  
string Student::getTerm()
{
   return term;
}
      
      
void Student::setTerm(string term)
{
   this->term=term;
}

//Overriding Print()      
void Student::Print()
{
   cout<<"================================================================="<    cout<<"Student First Name: "<    cout<<"Student Last Name: "<    cout<<"Student ID: "<    cout<<"Student GPA: "<    cout<<"Student Admit Term: "<    cout<<"================================================================="< }

//faculty.h

#ifndef FACULTY
#define FACULTY

#include"person.h"

//Inheriting Person

class Faculty : public Person
{
  
   //Member variables  
   private:
       string year;
  
   //Member functions  
   public:
       void setYear(string);
       string getYear();
       void Print();
      
};

#endif

//faculty.cpp

#include "faculty.h"

void Faculty::setYear(string year)
{
   this->year=year;
}

//Accessor Method  
string Faculty::getYear()
{
   return year;
}
      
      
//Overriding Print()      
void Faculty::Print()
{
   cout<<"================================================================="<    cout<<"Faculty First Name: "<    cout<<"Faculty Last Name: "<    cout<<"Faculty ID: "<    cout<<"Faculty Hire Year: "<    cout<<"================================================================="< }

//main.cpp

#include "student.h"
#include "faculty.h"

using namespace std;

//Main() method
int main()
{

   //Creating object of Student
   Student s;
   s.setFirstName("");
   s.setLastName("");
   s.setGPA(4.00);
   s.setTerm("Spring 2019");
   s.Print();
  
   //Creating object of Faculty
   Faculty f;
   f.setFirstName("Mary");
   f.setLastName("Smith");
   f.setYear("2019");
   f.Print();

   return 0;
}