Assignment 8 : Application of Multithreading, Synchronization,
            Socket And OOP Design and Implementation
	                 Dr. Huaqing Wang
                     Due 5/18/2020 by 5:00 PM

A "live chat", or "online help" allows advisors or representatives of  banks,
companies, and organizations to serve their customers by answering qutestions online.

You are going to modify the GROUP_STUDY program (in GroupStudy_ForClass.zip) to a 
live-chat program with features defined in section II. 


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I.	Purposes:

	    Get familiar with 
	- Apply Multithreaing, and  Thread -Synchronization, Network programming
	   (Sockets) to solve a more complicated problem.
	- Use OOP, top-down design method in program design and implementation.

II.	Assignment Description

     
    The "Online help" or "Live Chat" program consists of two interfaces:

	(1) One for users/customers/clients to ask questions lively on company products
        and/or services.
	(2) One for Company-Agents/Advisors/Representative  to answer questions of clients
        about about the company products or services.

    This assignment will write a online-help prgram with following features:


   On Customer/Client Side:

   1. Enter a user name and zip code in two textboxes, and buttom "Chat start" to bring
      out a a different window. 
   2. The window will have at least 2 Boxes, one for typing questions and one for showing
      questions and answers.
   3. Message showing status of representative (such "Clark/advisor is typing")
   4. The questions and answers are prefixed with customer's and representative's names.
      The text color for names, and questions and answers with different colors.
   5. A customer can switch him/her currect advisor to another adivisor.

  On Advisor/Representative Side (after I ask some adivosr at Ortho). 
    
   If you want to use GroupStudy project to start with, you need to add a new class naned
   Advisor/Representative.

   1. Representative can talk to N customers at the same time (The Ortho company bought
      the liences for talking to 3 clients for one presentative).

   2. A representative can use one shared windows or separated windows to talke to multiple
      customers. I suggest that a single window is used to host multiple clients. Only
      one client will be selected to answer his/her question at a given  time. The advisor
      can switch among his customers.

   3. If one window is used, a client name is clicked and name will appear somewhere,
      all the communications will go to the chosen cleint.

   4. Multiple representatives can login the sysems and each, and talk his/her group of
      clients. A represenative can transfer his/her clients to another representative.