JAVA大学教程中的即时通讯工具，案例参考-instant message from <<java how to program>>

这是一个典型的网络聊天系统的设计和开发案例，完整地体现了一个网络应用系统的对象定义、对象建模和模型转换为编码的基本开发流程。-This is a typical online chat system design and development case, a complete embodiment of a network application system for object definition, object modeling and model transformation for

个人参考案例教程的java程序，仅仅使用AWT图形库，无任何Swing，并在原程序的基础上修正了美观度和代码。-Personal reference case tutorial java program, using only AWT graphics library, without any Swing, and amendments to the aesthetics and the code on the basis of the original program.

简单的网络编程案例，编写两个java程序实现实时聊天(A simple case of network programming, writing two Java programs for real time chat)