Question
Write a C++ coding program to process a contact list of friends and business contacts. There are three milestones in this assignment. The deliverable of
Write a C++ coding program to process a contact list of friends and business contacts.
There are three milestones in this assignment. The deliverable of each milestone is a C++ program. You are allowed to use only C++ standard libraries except
Milestone 1
Write a program which processes the contact information of friends. The data fields of a friend object are name, address and personal phone number. Implement a Friend class and use a vector or a static array to store the Friend objects. If you use a static array, assume the maximum number of Friend objects to store in the array is 50.
The features required are:
1. Insertion of a new object
2. Modification of a data field in the object
3. Deletion of an object
4. Listing all friends on screen, displaying all the data fields.
5. Sorting of the list of friends in ascending or descending order based a data field.
6. Displaying friends which contain a certain text string specified by the user in a data field.
7. Saving the data of all Friend objects into a text file
8. Loading the data of all Friend objects from a text file
Design your own user interface to facilitate the features above. The program should check and ensure that only valid data are entered into the record. Assume that when the user is required to enter a number, the user will not enter text characters.
For marking purpose, prepare a sample data of at least 10 Friend objects in a text file for loading into the program.
Milestone 2
Implement a BusinessContact class, duplicate the program from milestone 1 and modify it to process BusinessContact objects instead of Friend objects. The data fields of a business contact are name, address and company.
Milestone 3
Implement a Person class which has two data fields, name and address, and the following pure virtual functions.
display : to display all data fields
modify : to modify a data field
~Person : to enable dynamic binding on the destructor
Implement a Friend class which inherits from the Person class and overrides the virtual functions in the Person class.
Implement a BusinessContact class which inherits from the Person class and overrides the virtual functions in the Person class.
Modify the program in Milestone 1 to store the (pointers to) Friend objects and the (pointers to) BusinessContact objects in one vector or one static array. The program will process both Friend objects and BusinessContact objects together making use of the concept of polymorphism. It will have all the features from feature 1 to feature 8 listed in Milestone 1 with the following exceptions.
a. Feature 5 only needs to support sorting by name.
b. Feature 6 only needs to filter by either name or address each time this feature is invoked.
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