FileUploadServlet

说明：  Android 系统中 USB Camera的测试测试demo(Test demo of USB camera in Android system)

Virus scanner, which scans the virus of your system, developed using java

可以实现贪吃蛇小游戏的基本操作，重回儿时记忆(The basic operation of the snake game can be realized)

说明：  一个应用线程实现指针运动的指针时钟程序。程序应用绘制函数时钟面板，根据线程休眠时间间隔，每隔1000ms进行一次重绘。程序通过获取系统时间函数并加以计算个指针位置，再利用绘制函数将其绘制在面板上，通过设置指针长度及颜色，实现时针、分针、秒针的区分。次外，通过获取窗体大小，设置圆面圆心坐标及半径，可依据窗口大小动态划分圆面大小，并动态绘制刻度点位置。(A pointer clock program that uses threads to implement pointer movement. The program draws the function clock panel and redraws it every 1000ms according to the interval of thread dormancy. The program obtains the system time function and calculates the position of a pointer, then draws it on the panel by drawing function. By setting the length and color of the pointer, it achieves the distinction of clockwise, minute and secondhand. Secondly, by acquiring the size of the form and setting the coordinates and radius of the circle center, the circle size can be dynamically divided according to the size of the window, and the location of the scale points can be dynamically plotted.)

实现一个数据单元，包括学号和姓名两部分。 编写两个线程，一个线程往数据单元中写，另一个线程往出读。要求每写一次就往出读一次。

画板源代码和素材 虽然功能简单的 但练习够用(Sketchpad source code and material )

利用java实现的服务端小程序，带有界面，java课程作业，希望可以对初学java的学者有所帮助。(Java implementation of the server side applet, with interface, java course assignments, hoping to help beginners java scholars.)

The Great Computer Language Shootout for Java Script.

利用Eclipse开发的基于sun公司jxta协议的Jxta管道编程的通信程序(The use of sun-based Eclipse development company Jxta pipeline agreement JXTA programming Communication Program)

说明：  一只青蛙一次可以跳上1级台阶，也可以跳上2级。求该青蛙跳上一个n级的台阶总共有多少种跳法。要求：分别用普通方法和递归方法实现(A frog can jump up a step or two at a time. Find out how many jumping methods the frog can use to jump up an n-step. Requirements: Implemented by common method and recursive method respectively)