基于Corba的聊天室，可以设定人数上限。-Corba-based chat room, you can set the maximum number.

用于JAVA聊天工具编程的源代码，不知道好不好用的，下载试试把手-Chat tool for JAVA programming source code, I do not know better-to-use, download try the handle

仿QQ聊天。是采用 Java平台开发的一套即时通讯聊天系统，献给对即时通讯有兴趣的朋友。服务端实现了TCP Socket和WebSocket，方便接入网页版、安卓、IOS、PC桌面版客户端(Imitation QQ chat. It is an instant messaging chat system developed on the Java platform dedicated to friends who are interested in instant messaging. The