Access the loop result to instance of class for output - c++

Question

Alright, so I have an class-inventory assignment for my C++ class. The thing I'm struggling with right now is the part between the loop and object creation.
string description = "";
int id_number{0};
int quantity_number{0};
double price_value{0};
for (int count{1}; count <= inventory_num; count++)
{
cout << endl;
cout << "Item #" << count++ << endl;
cout << "Enter the id number: ";
cin >> id_number;
cout << "Descriptiom: ";
cin.get();
getline(cin, description);
cout << "Quantity on hand: ";
cin >> quantity_number;
cout << "Unit price: ";
cin >> price_value;
cout << endl;
}
InventoryItem item1(id_number, description, quantity_number, price_value);
InventoryItem item2(id_number, description, quantity_number, price_value);
InventoryItem item3(id_number, description, quantity_number, price_value);
InventoryItem item4(id_number, description, quantity_number, price_value);
item1.display(); cout << endl;
item2.display(); cout << endl;
item3.display(); cout << endl;
item4.display(); cout << endl;
return EXIT_SUCCESS;
}
So the problem is, for example, looping the input for 4 times, but the output only shows the the data from the LAST INPUT OF THE LOOP for ALL OF THE OUTPUT(item1,item2,item3,item4). How do fix this lads?

Answer 1

You overwrite the values in each loop iteration. After the loop the values of the last iteration are stored in your variables. You could fix it with a std::vector
#include "InventoryItem.hpp"
#include <iostream>
#include <string>
#include <vector>
using std::cout;
using std::cin;
using std::endl;
using std::string;
using std::getline;
int main() {
string description = "";
int id_number{0};
int quantity_number{0};
double price_value{0};
std::vector<InventoryItem> items;
for (int count{1}; count <= inventory_num; count++)
{
cout << endl;
cout << "Item #" << count++ << endl;
cout << "Enter the id number: ";
cin >> id_number;
cout << "Descriptiom: ";
cin.get();
getline(cin, description);
cout << "Quantity on hand: ";
cin >> quantity_number;
cout << "Unit price: ";
cin >> price_value;
cout << endl;
items.emplace_back(id_number, description, quantity_number, price_value);
}
items[0].display(); cout << endl;
items[1].display(); cout << endl;
items[2].display(); cout << endl;
items[3].display(); cout << endl;
return EXIT_SUCCESS;
}