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

是一个基于JPCAP的JAVA管理程序，同时还包括了一部分SNMP的功能，包括PING,端口扫描，SNIFFER等！-This software need a Java virtual machine installed on your computer. The minimal version needed is 5. In order to download a Java VM you can go to http://java.sun.com. I

tcp 或 udp 实现文件的上传和下载，只是一个简单的例子-tcp or udp for file upload and download, just a simple example

java SE版的简单聊天室，实现了群聊，私聊，上传下载，查看聊天记录，修改密码等功能。(Java SE version of a simple chat room, has realized the group chat, private chat and upload download, view the chat logs, change passwords, and other functions.)