Java课程设计java编写的聊天工具可实现添加好友注册，私聊，聊天记录，聊天室群聊等等。-Java programs designed to prepare java chat tool can be achieved to add friends registered私聊, chats, chat rooms and so a group chat.

一个用JAVA编写的聊天工具,实现私聊功能和群聊功能-A tool can talk with each other