C++ data file handling doubt

consider the following program

#include<iostream.h>
#include<fstream.h>

void main()
{
int no;
ifstream fin;
ofstream fout;
fout.open("create,dat",ios::app);
fout<<"What is your fav. number";
fin>>no;
fout<<no;
fout.close();
}

NOW HERE IS THE PROBLEM WHILE THE PROGRAM IS RUNNING PERFECTLY AND THE NUMBER IS BEING STORED IN A .DAT FILE BUT WHEN I AM WORKING ON THE NORMAL THE OUTPUT(NUMBER IN THIS CASE) IS NOT GETTING DISPLAYED IN THE NORMAL OUTPUT MODE (WHICH COMES UP WHEN YOU COMILE AND RUN A PROGRAM,CTR+F9) !

CAN ANYONE PLEASE HELP ME IMPROVE ME CODE SO THAT I CAN DISPLAY THE NUMBER IN THE OUTPUT MODE TOO.....