这是一个基于UDP的多路监听的JAVA的源程序，希望对初学者有帮助。里面包含一个设计文档。-This is a UDP-based multi-channel monitoring of the JAVA source code, want to be helpful for beginners. Which contains a design document.

UDP用java实现的聊天工具。是一款比较适合初学者学习的程序.-DUP java chat，a very good thing.if you download this program，it is very useful . this include several class.a a a a. enough？