Write a simple telephone book program that stores the names and phone numbers of your friends/acquaintances in a file. Your...

Write a simple telephone book program that stores the names and phone numbers of your friends/acquaintances in a file. Your program should have the abilities to: a. Add entries (name and phone number), b. Edit/correct entries, c. Find and display an entrie based on either the name or the phone number and d. Display all entries