非常好的Ajax框架，基本上可以理解为富客户端。能够做出跟Windows应用程序类似的界面。开源而且有丰富的文档-A very good Ajax framework, basically can be understood as rich clients. Able to make a similar application with the Windows interface. Open-source and has a wealth of documentation

计算器程序（模拟Windows计算器） 用以进行数据的运算-Calculator program (emulating Windows Calculator) for computing data

很好的java入门程序,本书源程序都是在Windows 7下开发的，程序测试环境为Windows Server 2003和Windows 7。-the java program