TCP、UDP、计算器、日历，applet、异常处理等等，还有课本经典例题源码使用基础的程序源代码（Word文档里）。适合初学java这下载学习。-TCP, UDP, calculator, calendar, applet, exception handling, etc., as well as the classic textbook Example source code using the basic source code (Word document-ri). This downl

采用异步socket 消息方式接收数据的UDP通信程序，支持域名，并且加入了异常处理。-UDP communication program to receive data using asynchronous socket messages, support for the domain name, and joined the exception handling.