A simple group chat application using Java

A demo with three users in the group chat

background

A GUI application for studying client-server, socket, threadpool, and concurrency
- It uses java swing to create user interface, and applies client-server to support multi-users group chat.
- It set a fixed thread pool with 10 threads, you can increase it if you need more.
- this project is inspired by the two blogs.
  - check out reference1
  - check out reference2

functionalities

Connection panels with hostIP and port
- support client and server connect and disconnect.
- all disconnected
- server ON
- one user ON
connection status bar
- support status report on connecting: connected, disconnected, etc.
chatter name selection
- support name for each connected chatter
- keep asking for name if input name is not unique
total chatters online
- support display of the number of current chatters in the room
message formatting
- support system messages with blue color shown in the middle
- support other chatters messages shown on the left of the panel
- support self message display on the right side
multi-users group chat
- support multiple users join, leave, and rejoin

Happy exploring! Star if you like it!