C++ cin Read double type value from command line

#include <iostream>
using namespace std;
int main()/*from w  w  w  . ja va  2  s.  c  o m*/
{
   double num1, num2, product;
   cout << "Please type in a number: ";
   cin  >> num1;
   cout << "Please type in another number: ";
   cin  >> num2;
   product = num1 * num2;
   cout << num1 << " times " << num2 << " is " << product << endl;
   return 0;
}