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JMeetUp
An Example Using TCP and UDP


Prof. David Bernstein
James Madison University

Computer Science Department
bernstdh@jmu.edu

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Overview
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  • A Classic Conversation:
    • "What do you want to do? I don't know, what do you want to do?"
  • The Concept:
    • Create a tool that a group of friends can use to make plans.
Some Needs
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  • Chat:
    • A way for everybody who is currently "on line" to exchange ideas
  • Proposals:
    • A way for anybody (not just those who are currently "on line") to propose a plan or to vote for an existing proposal
Some Requirements
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  • Chat:
    • Needn't be reliable so use UDP
  • Proposals:
    • Must be reliable so use TCP
Handling Commands
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images/JMeetUp-commands.gif
Talk
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images/JMeetUp-talk.gif
Propose, Check and Choose
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images/JMeetUp-proposecheckchoose.gif
A Proposal
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javaexamples/jmeetup/Proposal.java
 
The Client
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javaexamples/jmeetup/Client.java
 
The Server
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javaexamples/jmeetup/Server.java
 
The Server (cont.)
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The Connection Handler

javaexamples/jmeetup/ConnectionHandler.java
 
There's Always More to Learn
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