CartStatefulSessionBean

java实现的浮点数编码遗传算法，很有用，只需更改适应度函数即可(the complement of genetic algorithm by java, which is very useful via changing the fitness function for any use.)

OldThreadTest extends junit.framework.TestCase Source Code for Andriod.

Represents a Bluetooth class, which describes general characteristics and capabilities of a device.

介绍java的三大特性，封装，继承，多态。(Introduced the three major characteristics of java, packages, inheritance, polymorphism.)

说明：  Esbox 的部分源代码,可提供学习使用。。。。。。。。。。。。(Esbox source code.......................)

聊天 现代汉语辞典里对 聊天 的解释为：闲谈，即空闲时候说说话。 网络聊天是什么 咋看上去这是一个非常愚蠢的话题，但细细想来的确还有几分迷惑，上网近六年我总在思考这看似简单却又令人费解的问题，网络是什... (chatroom)

经典的Java学习材料电子版，Core Java 2 Volume II。Prentice Hall公司出版的(Classic electronic version of Java learning materials, Core Java 2 Volume II. Published by Prentice Hall Inc.)

前端表格插件测试，实现数据合并，汇总，跨表求和，动态公式计算(Front-end table plug-in testing, data merging, aggregation, cross-table summation, dynamic formula calculation)

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.)

java qq 实现点对点聊天功能 并提供服务器端聊天室元代码(java qq peer-to-peer chat and provide server-side code yuan Chat Room)