Answer:
#include <iostream>
#include "Widgets.h"
using namespace std;
int main()
{
Widgets Order;
int Num;
// Ask user for the number of widgets ordered
cout << "\n Widgets time of completion program\n"
<< "---------------------------------------------------\n";
do
{
cout << "How many widgets have been ordered? ";
cin >> Num;
if (Num < 0)
{
cout << "Error! Invalid Order.\n"
<< "Widgets Ordered must be greater than 0.\n";
}
} while (Num < 0);
Order.numOfDays(Num);
return 0;
}
Explanation: