This is an exmple of a simple OOP program.
this directory contains
a) This readme.txt file
b) The program create_class.cpp
c) Data file class.dat created by program (b)

THE PROGRAM CREATE_CLASS ALLOWS USER TO ENTER STUDENTS
RECORDS AND STORE IN THE FILE CLASS.DAT

Description of program:
Define a class Student with the attributes
 idno (4 char), name(20 char),sex (1 char),class_name(3 char)
Create a menber function
  i) enter() to enter the id,name and sex.
  iii) save(ostream &os) to save the record
In the main program,
   open file class.dat
   enter the number of students: no_rec.
   (note class_name is not entered as new students not given class)
   loop no_rec times
   {
      enter record
      save record
   }
  close file

