Need help regarding develpment of a chat application in java

hi
well, i would like to know what is the best and simple technolgy to develop a simple chat application. I was searching this on internet and found some using servlets and JSP's, applets, RMI etc. I dont know exactly which to use. Infact iam new to java and if someone can help me out with this, i can start reading the specific technology.
Thanks in advance.
ravi.

follow this tutorial and you might get some clues: http://java.sun.com/docs/books/tutorial/networking/sockets/index.html

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1)
UNIVERSITY OF SUNDERLAND
SCHOOL OF COMPUTING AND TECHNOLOGY
MODULE CODE:      COMM3C
MODULE TITLE:      Java Network Programming
MODULE ASSESSOR:      Adrian Wadsworth
ASSESSMENT:      One of Two (Referred/Deferred)
TITLE OF ASSESSMENT:      Individual Assignment Snooker Scoreboard Application (4 pages)
MODERATED:      May 2006
PLEASE READ ALL INSTRUCTIONS AND INFORMATION CAREFULLY.
This assignment contributes 50% to your final module mark.
Please ensure that you retain a duplicate of your assignment. We are required to send samples of student work to the external examiners for moderation purposes. It will also safeguard in the unlikely event of your work going astray.
THE FOLLOWING LEARNING OUTCOMES WILL BE ASSESSED:
Knowledge of:
a.      Critical awareness of the issues and problems associated with the development of programs to run in a networked environment      �9
b.      Critical understanding of the Java and the web      �9
c.      Architectural issues of relating to distributed systems
d.      Critical awareness of network programs and network protocols      �9
and ability to:
e.      Design and implement a Java applet or application      �9
f.      Critically evaluate network technologies for specific requirements
g.      Design test a Java based on-line systems      �9
h.      Work as part of a team to develop a component based system.
i.      Use and critically evaluate Software Engineering tools      �9
IMPORTANT INFORMATION
You are required to submit your work within the bounds of the University Infringement of Assessment Regulations (see your Programme Guide). Plagiarism, paraphrasing and downloading large amounts of information from external sources, will not be tolerated and will be dealt with severely. Although you should make full use of any source material, which would normally be an occasional sentence and/or paragraph (referenced) followed by your own critical analysis/evaluation. You will receive no marks for work that is not your own. Your work may be subject to checks for originality which can include use of an electronic plagiarism detection service.
Where you are asked to submit an individual piece of work, the work must be entirely your own. The safety of your assessments is your responsibility. You must not permit another student access to your work.
Where referencing is required, unless otherwise stated, the Harvard referencing system must be used (see your Programme Guide).
Submission Date and Time      Before 4pm, Friday 1st September 2006
Submission Location      LRC, Reg Vardy Centre, St Peters Campus
Java Network Programming (COMM3C)
Assignment 1 (Referred/Deferred) May 2006
Snooker Scoreboard Application
This assignment is designed to consolidate the knowledge of the Java programming language you have gained in the first half of the course and to develop your skills in using basic Java input/output facilities, designing graphical user interfaces and implementing client-server systems.
The Application (70 marks)
You will develop a client/server based scoreboard application which will present and log the activity of a snooker match which may comprise a maximum of 15 frames. Your application must be capable of performing the following functions:
(a) Displaying the current score of each player for the current frame.
(b) Displaying the break for the player currently at the table.
(c) Displaying a record of the sequence of balls potted with their values during each break for each player during the current frame.
(d) Logging, and ultimately storing on a floppy disc in drive A, a record of the sequence of events occurring during a frame. This would include: fouls committed, balls potted with their values and which player potted them for each frame completed. This is intended to provide the definitive record for the frame. Note that, with the exception of player names, match identification and the date, no other information (such as the frame score) should be stored on disc.
(e) Recalling a frame's record from disc. The application must be able to process the data recalled from disc for any chosen frame and provide the following information:
i) the frame score and the highest break for each player,
ii) the number of points conceded as fouls by each player,
iii) the number of times each player visited the table,
vi) the number of times each colour ball (not reds or free balls) was
v) potted in the frame as a whole by each player.
The application must be developed as a client/server system using the loopback address so the client and the server can be run on the same computer.
The client will include the graphical User Interface (GUI) which will facilitate the entry of player names, a method of scoring, a method of displaying all required information and interaction with the server to allow data to be sent to it and recalled from it. See above for detailed requirements.
The server must facilitate the storage to and retrieval from floppy disc of match data and interaction with the client. The server need only be capable of interacting with a single client.
The Application (continued)
In addition to your report (see next page), you must submit a 3.5 inch virus checked floppy disc (CD's are NOT acceptable) which must contain four folders, described below, and nothing else.
Folder 1: The clientSource folder. Must contain all client source files and nothing else.
Folder 2: The clientClass folder. Must contain all client class files and nothing else.
Folder 3: The serverSource folder. Must contain all server source files and nothing else.
Folder 4: The serverClass folder. Must contain all server class files and nothing else.
Any number of client classes may be developed, but the class containing the client's main method must be called client. Any number of server classes may be developed, but the class containing the server's main method must be called server.
All applications must be executable directly from the command prompt window, without the use of an additional Integrated Development Environment such as Eclipse or JBuilder. You must clearly identify which version of Java you have used to develop your application.
Note that it will not be possible for you to include class files corresponding to source files which do not compile correctly. You must, however, include all of your source files in the appropriate folder regardless of whether or not they compile.
You should place the floppy disc in a small envelope and tape it to the front sheet of your report so that no text on the front sheet is obscured. Do not apply tape to the disc itself.
Report Submission Details (30 marks)
Your report must contain the following elements:
(a) a well commented source listing of the application source code (whether functional
or not). Note that sections of code which do not function correctly should be clearly identified by the words "NOT FULLY FUNCTIONAL" and accompanied by a brief hand written explanation of the problem.
(b) a maximum of four screen shots showing the application in action
(c) a conclusion, with clearly marked sub-headings, which must include:
i) a clear statement of the extent of the application's functionality,
ii) a brief explanation of how to use your version of the application,
iii) a description of how you have made the application robust,
iv) any other commentary that you feel is relevant.
Your report must be presented on A4 sheets of paper which must be stapled together at the top left corner to allow access to all of the report�s contents without removing the staple.
If your report is too thick to be secured using a staple, punch a hole in the top left corner and bind the pages together with a treasury tag.
Your report must not be submitted in any type of cover or folder.
Your name, my name and the module number must be clearly displayed on the front sheet of your submission.
No other information, designs or motifs should appear on the front sheet.
Note that all the pages of this assignment must be submitted with your report and must immediately follow the front sheet.
Your report must NOT be submitted electronically and must NOT be included on your floppy disc.
Failure to comply with the requested report and floppy disc submission format will result in the allocation of a significantly reduced mark.
A.Wadsworth
2)UNIVERSITY OF SUNDERLAND
SCHOOL OF COMPUTING AND TECHNOLOGY
MODULE CODE:      COMM3C
MODULE TITLE:      Java Network Programming
MODULE ASSESSOR:      John Tindle
ASSIGNMENT      Two of Two (Referred/Deferred)
TITLE OF ASSIGNMENT:      Java Media Player
MODERATED:      May 2006
PLEASE READ ALL INSTRUCTIONS AND INFORMATION CAREFULLY.
This assignment contributes 50% to your final module mark.
Please ensure that you retain a duplicate of your assignment. We are required to send samples of student work to the external examiners for moderation purposes. It will also safeguard in the unlikely event of your work going astray.
THE FOLLOWING LEARNING OUTCOMES WILL BE ASSESSED:
Knowledge of:
a.      Critical awareness of the issues and problems associated with the development of programs to run in a networked environment      �9
b.      Critical understanding of the Java and the web      �9
c.      Architectural issues of relating to distributed systems
d.      Critical awareness of network programs and network protocols      �9
and ability to:
e.      Design and implement a Java applet or application      �9
f.      Critically evaluate network technologies for specific requirements      �9
g.      Design test a Java based on-line systems      �9
h.      Work as part of a team to develop a component based system.
i.      Use and critically evaluate Software Engineering tools      �9
IMPORTANT INFORMATION
You are required to submit your work within the bounds of the University Infringement of Assessment Regulations (see your Programme Guide). Plagiarism, paraphrasing and downloading large amounts of information from external sources, will not be tolerated and will be dealt with severely. Although you should make full use of any source material, which would normally be an occasional sentence and/or paragraph (referenced) followed by your own critical analysis/evaluation. You will receive no marks for work that is not your own.
Where you are asked to submit an individual piece of work, the work must be entirely your own. The safety of your assessments is your responsibility. You must not permit another student access to your work.
Where referencing is required, unless otherwise stated, the Harvard referencing system must be used (see your Programme Guide).
Submission Date and Time      Before 4pm, Friday 1st September 2006
Submission Location      LRC, Reg Vardy Centre, St Peters Campus
Module COMM3C Java Network Programming
Assignment 2 (Referred/Deferred) May 2006
Java Media Framework
Part 1 Research Topics
The Java Media Framework API (JMF) enables audio, video and other time-based media to be added to applications and applets built on Java technology. This optional package, which can capture, playback, stream, and transcode multiple media formats, extends the Java 2 Platform, Standard Edition (J2SE) for multimedia developers by providing a powerful toolkit to develop scalable, cross-platform technology.
The aim of this assignment is to develop the skills required by a network systems developer so that they are able to incorporate standard Java components code into their own projects.
Here is a link the JMF website
http://java.sun.com/products/java-media/jmf/
JMF documentation
http://java.sun.com/products/java-media/jmf/reference/docs/index.html
JMF code examples
http://java.sun.com/products/java-media/jmf/reference/codesamples/index.html
JMF Documentation
http://java.sun.com/products/java-media/jmf/2.1.1/specdownload.html
Download and read the JMF API Guide
https://sdlc3a.sun.com/ECom/EComActionServlet;jsessionid=1BA18CD12B4C0D0DEC445DAAD5522248
Research the topics given in Part 1 and answer the questions listed below.
Describe the structure and mode of operation of the JMF in your own words.
Describe in your answer Controller Event (ref p30 JMF API Guide)
Describe in your answer Standard Controls (ref p20 JMF API Guide)
Describe in your answer Presenting RTP Media Streams (ref p68 JMF API Guide)
Describe in your answer Capturing Time Based Media (ref p77 JMF API Guide)
Describe what is meant by a Media Processor and a Media Player. How do they differ?
Part 2 SimplePlayerApplet.java
Download the Java Applet, modify the source code and add it to a package within a Java Project. Recompile the Applet using JBuilder. Please refer to the following two links:
Code examples
http://java.sun.com/products/java-media/jmf/reference/codesamples/index.html
SimplePlayerApplet.java
http://java.sun.com/products/java-media/jmf/2.1.1/samples/samples/SimplePlayerApplet.java
Download the JMF library and add it to the JBuilder IDE using the Project Properties function.
Download the JMF library using this link
http://java.sun.com/products/java-media/jmf/2.1.1/download.html
Describe how you developed the applet SimplePlayerApplet.java
Describe how you tested SimplePlayerApplet.java.
Use the JB Builder/Designer tool to add two buttons to a Frame to start and stop the AppletPlayer.
Upload the Applet online to your CET website.
Set the access rights so that the Applet will run online via browser.
Test the Applet using a browser.
Provide screenshots to prove the Applet runs satisfactorily online.
Here is a link to view the operation of the JMF Player
http://osiris.sunderland.ac.uk/~cs0jti/NetSys/website/data-archive/COMM3C-JavaNP/JavaMediaFramework/SimplePlayerApplet/classes/
To run the Applet click on SimplePlayerApplet.html
To run this applet in your browser you must install the Java Runtime Environment and the JMF.
http://java.sun.com/j2se/1.4.2/download.html
To run the Applet it is also recommended that a codec pack is installed.
Here is a link to freecodecs.com
http://www.free-codecs.com/download/K_Lite_Codec_Pack.htm
The following codec packs have been found to work satisfactorily with the JMG Applet.
Install either the (i) K-Lite Code Pack or the (ii) XP Codec Pack
Note - Do not install both codec packs at the same time.
Video clips may be found at this URL
http://osiris.sunderland.ac.uk/~cs0jti/NetSys/website/data-archive/COMM3C-JavaNP/JavaMediaFramework/
Tests have shown that the following files are compatible with the JMF Player,
1 - eng.avi
2 - movie.mpeg
3 - hvid.avi
Note
If any of the links given above are broken then students may find copies of this data stored at the following URL.
http://cet-netres-srv.sunderland.ac.uk/website/Archive2006/JMF/SimpleAppletPlayer/
Student Report Structure
     1. Write and submit an original report relating to the design of your Java application.
     2. Provide a printed report. Your mark will primarily be obtained from your printed report.
     3. The contents of the report must be completely original, this includes text, diagrams and any simple examples.
     4. Students are required to submit a disk with their JBuilder Java Projects.
     5. Students must put their disk in an envelope and attach it their report.
     6. If the disk is directly sellotaped to the report their project code will be allocated a mark of 0.
     7. The report submitted must not exceed the page count excluding the front sheet and index.
     8. Students should print on just one side of the paper.
     9. Staple your report at the top left hand corner.
     10. Do not use plastic folders or envelopes that must be taken apart and reassembled.
     11. Required font type Arial or Times Roman and size 12.
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     14. Penalties will be incurred for the following
No name on disk
No name on report
Disk Sellotaped to report
Report in a plastic folder
JB project is incomplete or will not compile.
Moderated by MSc Moderation Panel May 2006
Reference: jmf-2006-v4-modified.htm
A copy of this assignment may be found online at URL
http://osiris.sunderland.ac.uk/~cs0jti
Name
Frontpage 1 side of A4 Index 1 side of A4
Part 1 Research into JMF 4 sides of A4 Marks 30
Controller Event
Standard Controls
Presenting RTP Media Streams
Capturing Time Based Media
Player vs processor
JMF Plug-ins
Part 2 SimplePlayerApplet.java 3 sides of A4 Marks 60
Link for application
Description of development
Start and Stop buttons
Description of testing
Online test � applet works
Screenshots
JB project loads
JB code runs - 20 marks
References 1 side of A4 Marks 10
List of references
Correct use of refs in main text
2)

Plagiarism, paraphrasing and downloading largeamounts of >information from external sources, will
not be tolerated and will be >dealt with severely.
You will receive no marks for work that is not yourown. Your work may >be subject to checks for
originality which can include use of an >electronic
plagiarism detection service.Hey, the OP didn't read the rest of the assignment so why should they read that part?

Need help regarding develpment of a chat application in java

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