为一般简单精简版的类似于QQ的聊天室软件，实现私聊，公聊，文件发送，功能完整，界面友好。(For simple and simple version of the chat room software similar to QQ, the realization of private chat, public chat, file sending, complete function, friendly interface.)

用java写的聊天室程序，可实现一对一私聊。(The chat room program written with Java can realize one to one private chat.)