How to create Chat application using Servlets & JSP

Posted by Crazy boy on Stack Overflow See other posts from Stack Overflow or by Crazy boy
Published on 2010-05-11T04:45:49Z Indexed on 2010/05/11 4:54 UTC
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java

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servlets

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jsp

I want to create chat application using Servlets & JSP. May I know how can I create chat application as I have never created before?

How much knowledge I need to have to create chat application?

Is there any need of networking API to create chat application?

What's the design pattern I need to follow to create that application?

Is there any need of database?

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