计算器,有点错误,望高人指教

java实现的一个即时聊天工具，希望大家共同研究共同进步-java achieve a chat tools, we hope to examine progress

q企业web应用 q企业web应用-enterprise web application q q q enterprise web applications enterprise web application q q enterprise web applications enterprises w eb application

jai-1_1_4-pre-dr-b03-lib-windows-i586-16_Apr_2008.rar是JAVA在WINDOWS下的图形处理增强包。-jai-1_1_4-pre-dr-b03-lib-windows-i586-16_Apr_2008.rar is in the WINDOWS under JAVA graphics enhancement package deal.

这是一个简单的聊天程序-This is a simple chat program

显示table的内容-table shows the contents

排序方法的动画，你可以得到一个动态的排序方法，很直观 -Sort method of animation, you can be a dynamic ranking method, it is intuitive

这是一个用Java编写的视屏播放的小程序，适合初学Java者学习-This is a work written in Shiping Java applet to play, suitable for beginners to learn Java by

简单的计算器，数字建0123456789和+-*/等等运算-Simple calculator, digital production 0123456789 and+-*/And so on computing

浮动的气泡Java小程序[功能描述] 几种不同颜色的气泡在窗口中慢慢升起。这就是浮动的气泡Java小程序所完成的工作。使用方法：把Bubbles.class放到HTML目录中即可。-Bubbles floating Java applet [Functional Description] in several different colors of bubbles rising slowly in the window. This is the floating bubble Java applet has done. Usage: Bubbles.class to put your HTML directory.

基于structs的菜单实现，有多种菜单。-structs on the menu, and it is a variety of menu.