By using C++ language, design Contact Management System that have Add, Edit, Delete, and Display function. Add Contact should store in phonebook.txt or phonebook.dat Refer figure below for guide:

1.Login Page

2.Main Menu

3.Display Page

1 Login Username: Password: Exit(Y/N): LOADING>>> >>>100% 1 Contact Management System 1. Add Contact 2.Display Contact 3. Edit Contact 4.Delete Contact 5.Sign Out Enter Your Choice : | No 1 First Name 1 Last Name 1 Phone/Home Number | Address I Email 1 Jhonny Smith 6234456 9764 La Sierra Court Fort Lauderdale jhonnysmith80@yahoo.com