(code below) Change the base class and derived class definitions to include the

ID: 3853344 • Letter: #

Question

(code below) Change the base class and derived class definitions to include the default constructor and an initializing constructor. The parameterized constructors need to initialize the private members of the respective class.

The derived class constructor needs to accept the initializing values for the base class members as well.

Also, write destructor functions for all base and derived classes. The default constructor and destructor functions don’t have to do anything.

In main func:

Create an object each of classes senior and freshman. While creating the objects, call the

parametrized derived class constructors and pass appropriate values. Call the derived class accessor function to get the value of name, id, gpa and respective

scores.

//Include the needed header files
#include <iostream>
#include <string>
using namespace std;

//Class
class Student
{
    //Access specifier
    public:

        //Mutator
        void setVars();

        //Accessor
        void getVars();

    //Access specifier
    private:

        //Variable for student id
        unsigned long int id;

        //Variable for student name
        string name;

        //Variable for student gpa
        double gpa;
};

//Definition for Mutator
void Student::setVars()
{
    //Variable for student id
    unsigned long int id;

    //Variable for student name
    string name;

    //Variable for student gpa
    double gpa;

    //Prompt for id
    cout<<" Enter the value of id : ";

    //Read id
    cin>>id;

    //Assign
    this->id= id;

    //Prompt for name
    cout<<" Enter the value of name : ";

    //Read name
    cin.ignore();
    getline(cin,name);

    //Assign
    this->name=name;

    //Prompt for gpa
    cout<<" Enter the value of gpa : ";

    //Read gpa
    cin>>gpa;

    //Assign
    this->gpa=gpa;
}

//Definition for Accessor
void Student::getVars()
{
    //Display student ID
    cout<<" ID : "<<id;

    //Display student name
    cout<<" Name : "<<name;

    //Display student gpa
    cout<<" GPA : "<<gpa;
}

//Derived class - Freshman
class Freshman: public Student
{
    //Access specifier
    private:

        //Variable for score
        double csce1030;

    //Access specifier
    public:

        //Accessor
        void getValue();

        //Mutator
        void setValue();
};

//Definition for Accessor
void Freshman::getValue()
{
//Display freshman score
cout<<" Score : "<<csce1030;
}

//Definition for Mutator
void Freshman::setValue()
{
    //Prompt for freshman score
    cout<<" Enter score for freshman: ";

    //Read freshman score
    cin>>csce1030;

    //Assign
    this->csce1030=csce1030;
}

//Derived class - Senior
class Senior: public Student
{
    //Access specifier
    private:

        //Variable for score
        double csce4530;

    //Access specifier
    public:

        //Accessor
        void getValue();

        //Mutator
        void setValue();
};

//Definition for Accessor
void Senior::getValue()
{
//Display senior score
cout<<" Score : "<<csce4530;
}

//Definition for Mutator
void Senior::setValue()
{
    //Prompt for senior score
    cout<<" Enter score for senior: ";

    //Read senior score
    cin>>csce4530;

    //Assign
    this->csce4530=csce4530;
}

//Driver
int main()
{
    //Create instance for freshman
    Freshman f1;

    //Create instance for senior
    Senior s1;

    //Details of freshman
    cout<<"Freshman"<<endl;

    //Function call
    f1.setVars();
    f1.setValue();
    cout<<endl<<"-------------------------------";
    f1.getVars();
    f1.getValue();
    cout<<endl<<"-------------------------------";

    //Details of senior
    cout<<endl<<" Senior"<<endl;

    //Function call
    s1.setVars();
    s1.setValue();
    cout<<endl<<"-------------------------------";
    s1.getVars();
    s1.getValue();
    cout<<endl<<"-------------------------------";

    //Pause
    cin.get();cin.get();

    //Stop
    return 0;
}

Explanation / Answer

Below is your code: -

//Include the needed header files

#include <iostream>

#include <string>

using namespace std;

//Class

class Student

{

//Access specifier

public:

//Mutator

void setVars();

//Accessor

void getVars();

//default constructor

Student();

//initializing constructor

Student(unsigned long int id,string name,double gpa);

~Student() {

}

//Access specifier

private:

//Variable for student id

unsigned long int id;

//Variable for student name

string name;

//Variable for student gpa

double gpa;

};

Student::Student() {

}

Student::Student(unsigned long int id,string name,double gpa){

this->id = id;

this->name = name;

this->gpa = gpa;

}

//Definition for Mutator

void Student::setVars()

{

//Variable for student id

unsigned long int id;

//Variable for student name

string name;

//Variable for student gpa

double gpa;

//Prompt for id

cout<<" Enter the value of id : ";

//Read id

cin>>id;

//Assign

this->id= id;

//Prompt for name

cout<<" Enter the value of name : ";

//Read name

cin.ignore();

getline(cin,name);

//Assign

this->name=name;

//Prompt for gpa

cout<<" Enter the value of gpa : ";

//Read gpa

cin>>gpa;

//Assign

this->gpa=gpa;

}

//Definition for Accessor

void Student::getVars()

{

//Display student ID

cout<<" ID : "<<id;

//Display student name

cout<<" Name : "<<name;

//Display student gpa

cout<<" GPA : "<<gpa;

}

//Derived class - Freshman

class Freshman: public Student

{

//Access specifier

private:

//Variable for score

double csce1030;

//Access specifier

public:

//Accessor

void getValue();

//Mutator

void setValue();

//default constructor

Freshman() {

}

//initializing constructor

Freshman(unsigned long int id,string name,double gpa,double csce1030) : Student(id,name,gpa) {

this->csce1030 = csce1030;

}

~Freshman() {

}

};

//Definition for Accessor

void Freshman::getValue()

{

//Display freshman score

cout<<" Score : "<<csce1030;

}

//Definition for Mutator

void Freshman::setValue()

{

//Prompt for freshman score

cout<<" Enter score for freshman: ";

//Read freshman score

cin>>csce1030;

//Assign

this->csce1030=csce1030;

}

//Derived class - Senior

class Senior: public Student

{

//Access specifier

private:

//Variable for score

double csce4530;

//Access specifier

public:

//Accessor

void getValue();

//Mutator

void setValue();

//default constructor

Senior() {

}

//initializing constructor

Senior(unsigned long int id,string name,double gpa,double csce4530) : Student(id,name,gpa) {

this->csce4530 = csce4530;

}

~Senior() {

}

};

//Definition for Accessor

void Senior::getValue()

{

//Display senior score

cout<<" Score : "<<csce4530;

}

//Definition for Mutator

void Senior::setValue()

{

//Prompt for senior score

cout<<" Enter score for senior: ";

//Read senior score

cin>>csce4530;

//Assign

this->csce4530=csce4530;

}

//Driver

int main()

{

//Create instance for freshman

Freshman f1;

//Create instance for senior

Senior s1;

//Constructor calling

Freshman f2(1,"Suresh",7.4,23.4);

Senior s2(2,"Ramesh",8.4,62.4);

//Details of freshman

cout<<"Freshman"<<endl;

//Function call

f1.setVars();

f1.setValue();