04【熟悉】excel 的导出xls

Test Target Class Source Code for Andriod.

A wrapper around log4j that is used for logging debug and errors.

Note: the test case uses a temp text file named "test" which contains 31 characters : "P@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]".

一个投票系统，使用的是ssh框架开发很具有开发的哦意义，很值得参考(A voting system, using ssh framework developers have developed very Oh significance, it is worth considering)

ejb3.0有状态会话bean实现简单购物车(ejb3.0 stateful session bean to achieve a simple shopping cart)

说明：  在软件业，AOP为Aspect Oriented Programming的缩写，意为：面向切面编程，通过预编译方式和运行期动态代理实现程序功能的统一维护的一种技术。AOP是OOP的延续，是软件开发中的一个热点，也是Spring框架中的一个重要内容，是函数式编程的一种衍生范型。利用AOP可以对业务逻辑的各个部分进行隔离，从而使得业务逻辑各部分之间的耦合度降低，提高程序的可重用性，同时提高了开发的效率(In the software industry, AOP is the abbreviation of Aspect Oriented Programming, which means: Face-Oriented Programming, a technology to achieve unified maintenance of program functions through pre-compiling and run-time dynamic proxy. AOP is the continuation of OOP, a hotspot in software development, an important content in Spring framework, and a derivative paradigm of functional programming. Using AOP can isolate all parts of business logic, which reduces the coupling between the parts of business logic, improves the reusability of programs, and improves the efficiency of development.)

cas单点登录源码,解压缩就能打开，并且查看，非常简单实用！(cas sso login source)

springboot demo 亲测可用(springboot demo program)

java io体系中的File类的操作，一个个的小例子，便于初学者学习(File class in java io system operation, a small example easy for beginners to learn)

此代码的功能是实现一个简单的计算器，用JAVA语言编写完成()