FTPUtil

说明：  J2EE规范的JAAS开发安全实例：介绍了J2EE的安全模式、中间件应用的JAAS实现。(J2EE standard JAAS security development examples : a J2EE security model, middleware applications JAAS achieve.)

此源代码实现了下载器的基本功能，模仿简单的快车下载，深入学习java网络以及文件编程有很大的帮助(this program provide you with a deeper study in java)

这个是用protege建立的本体实例。 可用于语义推理。(This is the ontology instances created with protege. Can be used for semantic reasoning.)

for simulatio wireless sensor network

用JAVA语言编写的发牌程序，能够实现随机发牌的功能。(Using Java language licensing procedures, random licensing.)

This interface provides a method to filter data entries.

自动生成javabean的功能，生成get&set方法之类的东西(自动生成javabean)

编写一个控制台程序，模拟在ATM机的存款和取款过程，当输入给定的卡号和密码（初始卡号和密码到数据文件里查看）时，系统能登录ATM系统，根据用户的身份不同显示不同的程序界面；取款 　　每次取款金额只能为100的倍数，总额不超过2000元，不允许透支。且取款之后，要记录取款的金额和时间。 存款 　　每次存款金额只能为100的倍数，总额不超过2000元。 修改密码 　　新密码长度不小于6位，不允许出现6位完全相同的情况，只有旧密码正确，新密码符合要求，且两次输入相同的情况下才可以成功修改密码。(Write a console program to simulate the ATM deposits and withdrawals process, when you enter a given number and password (the initial number and password to the data file view), the system can log in ATM systems, according to the user' s identity different display different The program interface withdrawal amount each withdrawal can only be a multiple of 100, the total does not exceed 2,000 yuan, does not allow overdrafts. And withdrawals after the withdrawal of the amount to be recorded and time. Deposit Amount per Deposit only a multiple of 100, totaling no more than 2,000 yuan. Change Password New Password length not less than six, allowed six identical situation, only the old password is correct, the new password meets the requirements, and enter the same case twice before they can successfully change the password.)

1、聊天室创建 管理员可以自由的创建嘉宾聊天室,可以随意添加嘉宾的名单、设置主题、时间和简介等有关内容...3、聊天室关闭 管理员可以关闭不再使用的嘉宾聊天室(1, the chat room administrator can create the freedom to create guests chat rooms, can add the list of guests, set the theme, time and brief description of other relevant content ... 3, chat rooms are no longer close the administrator can shut down chat rooms used by guests)

比较好的考试学习系统，可以下载用来学习JAVA编程。(relatively good learning examination system, can be downloaded for learning Java programming.)