一个关于java的计算器的程序

JR 公共类库 －－Java研究组织开源子项目 本项目的发起的初衷是丰富和完善java的类库，我们希望通过大家的共同努力减少很多不必要的重复劳动，也希望能让更多的初学者更容易的使用java进行开发。对于参与本项目的人，我们希望在相互合作的过程中共同的提高自己的能力，对于关注本项目的人，我们希望您能从我们的劳动成果中获益，也希望您能加入我们的行列。让我们一起行动，使我们的开发更容易，使我们的程序更多彩！-JR public library-- open-source Java Research Program in the launching of the project is to enrich the mind and improve the java class libraries, we hope that through our joint efforts to reduce unnecessary duplication of work and also wish to allow more beginners easier for the use of java development. To participate in the project, we hope that mutual cooperation in the process of common enhance their capacity for attention to the project, we hope that you can work to our benefit from the results, I hope you will join our ranks. Let us act together to make our developers more easily make our procedures more color!

这是一个计算器软件代码，可以用来计算，虽说代码不是很完美，不过也是本人的初作，希望有意思的可以下下。-This is a calculator software code can be used to calculate, although the code is not perfect, however, is also beginning to make my hope that the next one can make interesting.

用Applet实现IM(在本地)(简单的socket编成) 用eclipes3.2 + tomcat5.5调试成功-with Applet IM (local) (simple socket organization) used eclipe s3.2 tomcat5.5 debugging success

关于文件处理的类，可以直接使用-on the document type, and can directly use

Jacob是使用JAVA调用COM组件的JAVA包，这是它的应用例子之五。-Jacob is to use JAVA call COM components, JAVA package, which is an example of its application of the five.

java写的股票交易系统，分为使用rmi和不使用rmi两部分-write java stock trading system, into use and not to use rmi rmi two parts

java应用cmpp2.0开发的简单程序模拟网关，具备多现场功能，初学者有很强参考价值-java application development cmpp2.0 simple simulation gateways, multi-site functionality, beginners have a strong reference value

java编的mp3播放器，可拖动进度条，可静音，有示波显示-java series mp3 player, can drag the progress bar may be mute, has Oscillographic show

java 实现IE地址栏-IE address bar

java对文件进行操作的例子-document operate example.