Exercise4

jfreechart的官方源码，他的强大只有用过的人才知道，供大家学习(jfreechart official source, only used his powerful talent to know, for them to learn)

本系统是基于java开发的聊天室。服务端和客户端可以发送和接收消息，由于未写出服务端窗口，聊天记录只会在输出的窗口显示。如果服务器还未启动，客户端不能利用聊天室发消息。若在运行过程中服务器断开，系统会有提示。(This system is a chat room based on java. Both the server and the client can send and receive messages. Since the server window is not written out, the chat record will only be displayed in the output window. If the server has not been started, the client can not use the chat room to send messages. If the server is disconnected during operation, the system will be prompted.)

说明：  SIP信令解析的jar包， 用于java语言的开发(There is a jar package of sip procotol, which is used in java development.)

Code for a blinking neon-like logo using graphics in Java.

一个基于java的串口通信，比较简单的程序，在eclipse里开发，需要先把串口通讯相关的dll文件安装好(A java-based serial communication, relatively simple procedures, the eclipse in the development, the need first serial communication related dll files installed)

Perst开源实时数据库，据说非常不错，大家可以到此互相学习交流。(Perst open source real-time database, said to have been very good, everyone can learn from each other to this exchange.)

Myeclipse中文教程，详细的介绍了集成开发环境的各项功能，对于学习Myeclise的学习者，将会有很的帮助(Myeclipse Chinese tutorial describes in detail the various functions of an integrated development environment for learning Myeclise learners, there will be very help)

hibernate开发参考手册，适合使用hibernate进行开发的开发人员，简单易懂，也适合初学者(hibernate development of the reference manual, suitable for the use of hibernate for the development of the Developer is simple to understand, is also suitable for beginners)

Artificial immune system

一个用于排队系统仿真的开源软件,有非常形象的图象仿真过程!(a queuing system simulation for the revenue-generating software, the image of the very image simulation!)