Assignment 9: Online Group Study 
	              Dr. Huaqing Wang

I.	Purposes:
    - GUI programming, event handling
    - Socket and Cient-Server programming.
	- Multiple Threading  Monitor and Synchronization
	  and Their Applications 

II.	Files:

    - One zip file named "GroupStudey*******.zip" can be downlowed from my
      website.
    - The program allows client to 

        1. Join a group and participate discussion with the group. A client
            in a group can send a public message to every memnbers in the group
            and can send private message one more more selected clients.
        2. It allow client change from current group to anohter existing group.
        3. A client create new group.


   - The zip file contains the following Files:

    1.  Client.java
    2.  Group.java
    3.  GroupButtonMap.java
    4.  Message.java
    5.  Names.java
    6.  Server.java
    7.  TestGroup.java
    8.  VGroup.java
    9.  Visitor.java
    10. VisitorButtonMap.java
    11. doClient
    12. doServer 

III. What You Need to Do?

    1. CHANGE SETTINGS: Change the host machine fro Server to "sleipnir", and change port 9nnn,
        and chage client port number to 9nnn also. Run Server on sleipnir and clinet on
       your own/lab machine.

    2. FUNCTIONALITIES OF CLIENT-SIZE PROGRAM: 
        Run the program multiple times to understand what the program do. Write down the
         functionalities and errors you encountered when running the sserver and client
         programs.

    3. FOR EACH JAVA FILE:

        (A) Functionalitis of File.
                write functionalities of the code in each java file.
        (B) Errors, Correction  and Impovements 
            write Errors and corrections,  and Improvements you may have..