Member Avatar for topaz

Hi,i am a computer science student and i was thinking of creating an online chat system for students in my uni as a final year project, i really need ideas on how i can go about my project, especially with the design, i am planning to use java socket programming with a GUI. Any idea you send to me will be very helpful.Thank you

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A practical start is to follow 's advice: write clear business requirements and a use-case list before any coding. Typical student-friendly scope that still shows design skills includes authentication, presence/online lists, public rooms and private messaging, offline message delivery with simple persistence, basic file transfer with size limits, and admin/moderation features. Non-functional goals (concurrency limits, latency targets, storage retention, basic encryption) should be in the spec too.

  • Authentication (store hashes, not plain text)
  • Presence, room list, private messages
  • Message history and offline delivery
  • File transfer (separate channel, size/type checks)
  • Admin tools, logging, rate limiting

Architectural notes: a central server that routes messages is simplest. Use a clear, versioned message format (JSON or a small binary frame) so the protocol can evolve. For small deployments, thread-per-connection with proper synchronization is fine; for larger loads use Java NIO or an event-driven model. For browser clients or future web interfaces consider WebSockets. Encrypt connections with TLS (JSSE) and apply input validation everywhere. Keep the GUI and networking decoupled: networking runs on background threads, UI updates on the GUI thread (Swing EDT or JavaFX Application Thread).

Design deliverables that make the project gradeable: requirement/use-case docs, sequence diagrams, a simple protocol spec, unit and integration tests, and a stress test harness. Sample source-code materials exist (as noted); review their license and security before reuse. Useful references: Java Sockets tutorial, Java NIO overview, and the WebSocket API (MDN).

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Member Avatar for jwenting

Start by laying down the business requirements, then do a thorough usecase analysis.
Basically run through the entire development cycle and don't just sit down with a code editor and stare at your screen hoping that someone will write your software for you (or even more optimistic, hoping it will write itself if you just wait long enough).

Any system that's more than trivial needs an analysis and design phase, now's the perfect time to learn how to do that and apply that knowledge.
Sadly many people don't and end up producing poorly designed and written and undocumented software that doesn't function as expected, is over budget, buggy, and leaves customers unhappy and companies in debt.

Member Avatar for freesoft_2000

Hi everyone,

Here is thread i created on wizard solution on chat applications that has full source codes on creating chat applications in java and would most probably be useful to you

here is the link to the thread

Yours Sincerely

Richard West

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