Question

I got a homework question, I can't figure out how to do it.

The program needs to be in C++ 11 using namespace std;

The student class defines the strings studentName and studenSSN as protected data members. A constructor has arguments that initialize the data. The class StudentAthlete is derived from the student class and has a private data member studentSport, which describes the sport the student plays. Both classes have a member function, identity(). The base class student outputs the student information in the form:

student: studentName SSN: studentSSN

The identity() function in the base class should support polymorphism and should be overriden in the derived class to add the information - Sport: studentSport. Finally, the class studentWorker is also derived from the Student class and includes the data member studentDept, which describes the department where the student works. The identity function for this class should report the student name, the student's social security number, and the department where the student works.

Define these three classes and write a test program that creates a vector of one Student object, one studentAthlete object, and one StudentWorker object. In a loop, execute the identity() function for each object so that the information for each object is displayed.

Answer 1

Screenshot

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Program

//Header files
#include <iostream>
#include<string>
#include<vector>
using namespace std;
//Create a parent class
class Student {
   //Instance variables
private:
   string studentName;
   string studentSSN;
public:
   //Constructor
   Student(string name, string ssn) {
       studentName = name;
       studentSSN = ssn;
   }
   //Method
   virtual string identify() {
       return "student: " + studentName + " SSN: "+studentSSN;
   }
};
//Child class
class StudentAthlete :public Student {
   //Instance variables
private:
   string studentSport;
public:
   //Constructor
   StudentAthlete(string name, string ssn, string sport) :Student(name, ssn) {
       studentSport = sport;
   }
   //Override
   string identify() {
       return Student::identify()+" Sport: "+studentSport;
   }
};
//child class
class StudentWorker:public Student {
   //Instance variables
private:
   string studentDept;
public:
   //constructor
   StudentWorker(string name, string ssn, string dept) :Student(name, ssn) {
       studentDept = dept;
   }
   //Override
   string identify() {
       return Student::identify() + " Department: " + studentDept;
   }
};
int main()
{
   //Crate vector objects
   vector<Student> student1;
   Student s("Harsha", "S-1");
   student1.push_back(s);
   vector<StudentAthlete> student2;
   StudentAthlete sath("Harsha", "S-1", "Badminton");
   student2.push_back(sath);
   vector<StudentWorker> student3;
   StudentWorker swk("Harsha", "S-1", "Physics");
   student3.push_back(swk);
   //Loop to display
   for (int i = 0; i < 3; i++) {
       if (i == 0) {
           cout << student1.at(0).identify() << endl;
       }
       else if (i == 1) {
           cout << student2.at(0).identify() << endl;
       }
       else {
           cout << student3.at(0).identify() << endl;
       }
   }
}

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Output

student: Harsha SSN: S-1
student: Harsha SSN: S-1 Sport: Badminton
student: Harsha SSN: S-1 Department: Physics