Hello. I have a question about how to put string, double and int object into a constructer in a class function by user-input. I am now practicing pointer, array, and class and try to build a program up by my self. However, I am stacked.

my code is here :

#include

#include

using namespace std;

class InventoryItem {

private:

string description; // item description

double cost; // item cost

int units; // number of units on hand

int MAX_NUMBER = 10; // limit of times to ask

public :

// default constructor

InventoryItem() {

description = "";

cost = 0.0;

units = 0;

}

string getDescription() {

return description;

}

double getCost()

{

return cost;

}

int getUnits() {

return units;

}

void setDescription(string d) {

description = d;

}

void setCost(double c)

{

cost = c;

}

void setUnits(int u)

{

units = u;

}

virtual void display() const {

cout << "type of this prodct is : " << description << " ";

cout << " price is : " << cost << " " << "$" << " ";

cout <<" the number of this product is " << units << endl;

}

void checkNum(int inputNumber )

{

if (inputNumber == MAX_NUMBER || inputNumber >= MAX_NUMBER )

throw " Error: this number is too big ";

}

};

int main() {

int howMany;

cout << "how many times you want to enter data " << endl;

cin >> howMany;

// try that imput number ot times is valid or nor

try {

InventoryItem item;

item.checkNum(howMany);

}

catch (const char * msg)

{

cout << msg << endl;

}

for (int i = 0; i < howMany; i++) {

InventoryItem item1;

}

system("pause");

return 0;

}

I made inside for loop empty:

What I want to do in this program is that fisrt, ask to an user how many times s/he wants to enter data: once the user put the number ( for example, int howmany = 4times ) , then the user is repeatedly (4 times ) requeired input data 1: the name of prodcut (string) , 2: the cost of the prodcut ( double ) , 3: the number of units of that ( int ) .

if the user put ( TV, 500.0, 1) ( Pen, 1.0 , 10 ) ( IPod, 120.25, 5 ) ( hand cream , 18.0 , 8 ) then this program dispay these data by using virtual void display() in InventoryItem class .

how can I put the data of user-input ?

Could you show me a solution ?