We want to build an address book that is capable of storing the name, address & phone number of a person.
-> Add - to add a new person record
-> Delete - to delete an existing person record by name
-> Search - to search a person record by name
-> Exit - to exit from the application
As we are creating an GUI application, we need to use a toolkit called SWING that is available in Java.
Swing is a GUI widget toolkit for Java. It's a part of a Oracle Java Foundation
Classes - an API for providing a graphical user interface for Java programs.
Swing was developed to provide a more sophisticated set of GUI components than
the earlier Abstract Window Toolkit.