- The default input file is called in.txt, and is a list of names and associated contact information.

computer science

Description

CIS 22C - Lab assignment 4

Background
In lab 3 we built a dictionary from a hashed table. In this lab we will build another look up table with the binary search tree.
In data structures, a dictionary can also be called a map or an associative array. It allows the user to enter a unique key in order to lookup a value associated with that key.

Lab Overview
Use the BST ADT to build an associative array that serves as a contact list, to look up people's contact information.

Details
Data Record Class
- Each data record has 3 fields: a name string, a phone string, and a web/email address string.
  The name and phone strings can contain spaces, ie. "Language Arts"
- The default input file is called in.txt, and is a list of names and associated contact information.
   Each line has a name, a phone number, and a web address. All fields are separated by comma.
- The data’s name is the key, the contact info (both the phone and the web address) is the value

Contact List Class
-  The contact list has an instance of the BST that is filled with data from the input text file
-  The BST is ordered by names
-  The contact list has 4 public methods (and other private or public methods as you see fit):

     List
     -  ask the user for alphabetical order or reverse alphabetical order
     -  print in the correct order all the names and associated contact info, in column format

     Delete:
     -  prompt for a name
     -  if the name is not found, print an error message
     -  if the name is found, remove the data record and print a confirmation message      

     Search:
     -  prompt for a name
     -  if the name is not found, print an error message and list all the names in alphabetical order
     -  if the name is found, print the name and all the contact info

     Update:
     -  prompt for a name
     -  if the name is not found, print an error message
     -  if the name is found, prompt the user for the name, phone, and web address.
        The user can enter new information or hit Enter for no change

Binary Tree Class, Binary Search Tree Class, and Binary Node Class
-  Use these classes from the class exercise, and add any necessary method to the appropriate class

Instruction Files

Related Questions in computer science category