C++ Program with clasess - c++

Question

I'm trying to make a program and while I'm making it I'm learning classes, inheritance and things I'll need. I'll give you the condition of the program and the code to where I got to.
The 2nd class I made it inherit the 1st, but I can't get the console to return the student's grade. Тhe condition they gave me confuses me and I can't figure out how they want to calculate the student's grade? Thanks in advance for your time and kindness :)
I. Define a student class CStudent storing name information,
student's faculty number and major to provide:
Create objects using a copy constructor
Creation of objects by explicit constructor (with parameters)
Using an implicit constructor
Assignment operator =
Comparison operator ==
Comparison operator < (by faculty number)
To read student data from stream input - operator>>
To output the student data to stream output - operator<<
Establish the member variables (mutators)
Reading the member variables (accessors)
II. Define a student booklet class CStudBook that inherits
CStudent with a member data container of the student's grades. To implement
a constructor with a filename parameter from which to initialize
container and the following methods:
Create an object using another object (copy constructor)
Creating an object using explicit parameters
Creating an object by default constructor
Calculate and return the student's grade point average
operator>>
operator<<
Print
#include <iostream>
#include <string>
#include <vector>
#include <fstream>
#include <algorithm>
using namespace std;
class CStudent {
public:
// Default constructor
CStudent() = default;
// Explicit constructor
CStudent(string name, int facnum, string specialty) {
this->name = name;
this->facnum = facnum;
this->specialty = specialty;
}
// Copy constructor
CStudent(const CStudent& obj) {
this->name = obj.name;
this->facnum = obj.facnum;
this->specialty = obj.specialty;
}
// Method, that prints the contents of the object
void PrintStudent() const {
cout << "Name: " << name << endl;
cout << "Fac. num: " << facnum << endl;
cout << "Specialty: " << specialty << endl;
}
friend std::ostream& operator <<(std::ostream& out, const CStudent& obj) // output operator
{
out << "Name:" << obj.name << "-> FacNumber: " << obj.facnum << std::endl;
}
bool operator <(const CStudent& obj) // operator for comparison of two objects
{
return name < obj.name;
return facnum < obj.facnum;
}
// operator login should be added here
private:
string name;
int facnum;
string specialty;
};
class CStudBook : public CStudent {
private:
int grade;
};
// Function, that gets student data from the console
// and creates an instance of the CStudent class using this data
CStudent CreateFromConsole() {
cout << "Enter name: ";
string name;
cin >> name;
cout << "Enter fac. num: ";
int facnum;
cin >> facnum;
cout << "Enter specialty: ";
string specialty;
cin >> specialty;
cout << "Enter student grade: ";
int grade;
cin >> grade;
cout << endl;
return CStudent(name, facnum, specialty); // returns an instance of the class
}
int main() {
vector<CStudent> students; // stack-like container
cout << "Enter total number of students: ";
int count;
cin >> count;
cout << "Enter details of students" << endl << endl;
for (int i = 0; i < count; i++) {
// Create an instance of the class
CStudent student = CreateFromConsole();
// Push a copy of the object into the container
students.push_back(student);
}
cout << endl;
cout << "Details" << endl << endl;
for (int i = 0; i < students.size(); i++) {
students[i].PrintStudent();
cout << endl;
}
fflush(stdin); // Reset input console
getchar(); // Pause
return 0;
}

Answer 1

I think grade is private members of class CStudBook so you can't call it from class CStudent.
If you want to access it my suggested keyword for you to find is protected members