This is an exmple of a simple OOP program.
This directory contains
a) This readme.txt file
b) The program create_update.cpp which update the class in Student.
c} The executable file creae_update.cpp
4) Data file uclass.dat which contains the updated class.

The class.dat contains students records 
Id(char 4) name char(20), sex(1 char) and class (3 char)
------------------------
A123 AH BENG             M000
A222 TINA                F000
C233 RON HUA             M000
------------------------------
The class values are all '000' and not updated.
This program updates the class '000' to some allocated class.

Method:
This program reads in the Student record from class.dat
Display the record
User update the class
User save the record


Description of program:
Open inpufile class.dat
Open output file uclass.dat
while loop{
   read one record from class.dat
   if end_of_file exit from loop
   display record
   enter class
   update class in record
   save the record
}
close the file

