How can i save arrays and print them on C++ - c++

Question

How can i save arrays and print them in c++,here's what i mean, i am creating a student database, and in one class i am giving the students name, surname, id, age, etc. So how can i save them and print those information that i have given. Here is what i have tried so far, and it hasn't been working any body have any ideas?
#ifndef Student_h
#define Student_h
class Student
{
public:
virtual void Print() = 0;
};
#endif
#include "Student.h"
#ifndef University_h
#define University_h
class University :public Student
{
private:
string University_Name;
public:
University(string Uni);
void Set_University_Name(string University);
string Get_University_Name();
void Print();
};
#include<iostream>
#include<string>
#include"University.h"
#include"Student.h"
using namespace std;
University::University(string Uni)
{
Set_University_Name(Uni);
}
void University::Set_University_Name(string U_Name)
{
University_Name = U_Name;
}
string University::Get_University_Name()
{
return University_Name;
}
void University::Print()
{
cout << "\n South East European University" << University_Name;
}
class Data_Base
{
private:
string Student_Name;
string Student_Surname;
string Course;
int Student_Age;
int Student_ID;
public:
void Set_Name(string Name);
string Get_Name();
void Set_Surname(string Surname);
string Get_Surname();
void Set_Course(string _Course);
string Get_Course();
void Set_Age(int Age);
int Get_Age();
void Set_ID(int ID);
int Get_ID();
void Print();
void Print_Data();
double Average();
};
void Data_Base::Print(){
int n = 0;
cout << "\n Enter how many students you wish to add: ";
cin >> n;
for (int i = 0; i < n; i++) {
cout << "\n Student:" << i + 1 << endl;
cout << "\n Enter Student Name:";
cin >> Student_Name;
cout << "\n Enter Student Surname:";
cin >> Student_Surname;
cout << "\n What Course is the Student Studying:";
cin >> Course;
cout << "\n Enter Student Age:";
cin >> Student_Age;
cout << "\n Enter Student ID:";
cin >> Student_ID;
}
}
void Data_Base::Print_Data(){
cout << "Student Data Base: " << endl;{
cout << "\n Student Name :" << Student_Name;
cout << "\n Course :" << Course;
cout << "\n ID : " << Student_ID;
}
}
#include<iostream>
#include<string>
#include"Student.h"
#include"University.h"
#include"DataBase.h"
using namespace std;
int main()
{
int Menu;
Data_Base add, view, average;
Data_Base* AddStudent = &add;
Data_Base* ViewStudents = &view;
Data_Base* AverageGrade = &average;
menu:
cout << "\n===========================" << endl;
cout << "\n Press - 1 - To Add New Students";
cout << "\n Press - 2 - To View Added Students";
cout << "\n Press - 3 - To To Find the Average Grade";
cout << "\n Press - 0 - To Quit Program";
cout << "\n ----Please Select An Option----";
cin >> Menu;
switch (Menu)
{
case 1:
AddStudent->Print();
break;
case 2:
ViewStudents->Print_Data();
break;
case 3:
AverageGrade->Average();
break;
case 0:
return 0;
cout << "\n Thank You for Using our Program!";
break;
default:
cout << "\n Wrong Button!Try Again";
goto menu;
break;
}
return 0;
}

Answer 1

int main()
{
int Menu;
Data_Base db;
menu:
cout << "\n===========================" << endl;
cout << "\n Press - 1 - To Add New Students";
cout << "\n Press - 2 - To View Added Students";
cout << "\n Press - 3 - To To Find the Average Grade";
cout << "\n Press - 0 - To Quit Program";
cout << "\n ----Please Select An Option----";
cin >> Menu;
switch (Menu)
{
case 1:
db.Print();
break;
case 2:
db.Print_Data();
break;
case 3:
db.Average();
break;
case 0:
return 0;
cout << "\n Thank You for Using our Program!";
break;
default:
cout << "\n Wrong Button!Try Again";
goto menu;
break;
}
return 0;
}
This should let you see one student after you added it. As mentioned in the comments, you will need a list in order to store multiple students in the same database. Also it was wrong to use three diferent Data_base objects hoping for them to have the same private members becouse they have different memory unless they point to the same object.