OOP Address Book - for beginners - updated

Changed the code on Dec 17th so that when searching for a contact, you can enter only part of the contact info to search for it instead of the whole string. This is a simple example with some explanation of a class that creates an address book. You can add contacts to the address book with their name, phone number, and email address (of course you can add whatever else). You can search thru the address book by any of the elements to display a specific contact or display the entire address book.