简单的计算器程序 java版 使用JFrame

用图形界面实现Timer，可以设置时间段，可以关闭和启动Timer用任意键完成。-use graphical interface to achieve Timer can be set-up time of the closing and can be activated with Timer arbitrary keys completed.

基础知识，为想了解JAVA的朋友提供最基础，最好的中文教程，当然也有高级的-Basic knowledge, as a friend would like to know JAVA to provide the most basic, the best Chinese Course and, of course, have higher

Jvie论坛的程序，不用多说了吧！-Jvie Forum procedures Needless to say!

spring的源代码-spring source

简单入门超级菜鸟jsp聊天室!非常低级，但是一看就懂。是您从白鸟变成菜鸟的必备代码！这下描述总够长了吧！-jsp chatRoom! very simple! develop by a Rookie

宾馆管理系统=-Hotels Management System =-----------------------------

java中的log4j日志的使用手册完全版本。-log4j The Complete Manual

GS算法,可以十分方便的查找stable matching,功能不时很强大,十分适合java初学者-GS algorithm, can be very convenient to find the stable matching, functions from time to time very powerful, very suitable for beginners java

自己用Java编写的简单程序，来显示系统日期-Own use Java write a simple program to display the system date! !

完成计算器的加，减，乘，除的一些简单的功能-completed calculator, plus or minus, multiplication, addition of a few simple functions