Crime File Management System is a system used to report crimes. This project will be done using JAVA as front end, and Oracle as back end. It can used to report crime. This project is mainly useful for police stations. This system will help to manage

一个用java编写的Caculater,很有意思！可以看看(A Caculater written in Java, it is very interesting!)

一个有关判断是否为闰年的java小程序,初学者可以下载来(A Java applet about judge whether it is a leap year, can be downloaded to the novice)