Англ This version of the Address Book application converts to a GUI that allows the user to add, update and/or delete entries in a persistent data file, using random access techniques. A tutorial that shows you how to build the Address Book application and the source are included. The readme file must be read before attempting to run the code. You can download the free tutorial from my site at (http://sumtotalz.com/TotalAppsWorks/addressBk_II_DL.html).
This tutorial contains over 20 illustrations and should be very useful.