In my C++ program I am trying to have a series of if statements check if a user input is negative, not a number, or is a number. I cannot figure out how to have a statement check if the input is not a number. Here is my code: #include #include using namespace std; int main() { double numberOfShares; bool check2 = true; while (check2) { cout << "Please enter the

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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In my C++ program I am trying to have a series of if statements check if a user input is negative, not a number, or is a number. I cannot figure out how to have a statement check if the input is not a number. Here is my code:

#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
double numberOfShares;

bool check2 = true;
while (check2)
{
cout << "Please enter the number of shares: ";
cin >> numberOfShares;
if (numberOfShares <= 0)
cout << "Invalid quantity. Quantity cannot be negative. Please try again." << endl;
else if ("not an number")
{
cout << "Invalid response. Please enter a number." << endl;
}
else
check2 = false;
}

return 0;
}

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