PDF分解和合并软件，是用于对PDF文件进行分解和合并，图形用户界面提供了选择文件和设置选项等功能-PDF Split and Merge is an easy to use tool to merge and split pdf documents. Console and GUI versions are available. The GUI is written in Java Swing and it provides functions to select files and set

机房管理系统是一套基于图形用户界面、下拉菜单以及导航功能相结合模式下的友好操作界面，易学易用. 系统采用服务器/客户机方式，方便地实现多用户端、多机房统一、跨网段、多校区管理. 系统功能实用,可实现机房管理规范化、自动化以及信息化.-Room Management System is a graphical user interface and navigation features drop-down menu mode combines the friendly interface, eas

基于java图形界面的聊天室，包括用户注册、邮箱验证，多人聊天以及私聊，类似天QQ性质。-Java graphical interface-based chat rooms, including user registration, mailbox validation the multiplayer chat as well as private chat, similar to the nature of the day QQ.