Problem

Write a program that provides a way for you to store and retrieve telephone numbers. Desig...

Write a program that provides a way for you to store and retrieve telephone numbers. Design a user interface that provides the following operations:

Add: Adds a person’s name and phone number to the phone book.

Delete: Deletes a given person’s name and phone number from the phone book, given only the name.

Find: Locates a person’s phone number, given only the person’s name.

Change: Changes a person’s phone number, given the person’s name and new phone number.

Quit: Quits the application, after first saving the phone book in a text file.

You can proceed as follows:

■ Design and implement the class Person, which represents the name and phone number of a person. You will store instances of this class in the phone book.

■ Design and implement the class PhoneBook, which represents the phone book. The class should contain a binary search tree as a data field. This tree contains the people in the book.

■ Add methods that use a text file to save and restore the tree.

■ Design and implement the class Menu, which provides the program’s user interface.

The program should read data from a text file when it begins and save data into a text file when the user quits the program.

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Solutions For Problems in Chapter 11
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