java_Env

这篇文章教你如何成为一位java高手，要想成为java高手的请多看看。(This article teaches you how to become a the java master, in order to become the java master of like him look at.)

hai还是可以用的，用于电脑的最新的文件生成，常用的话是最好的(hai can still use)

定义4个类，MyShape、MyLine、MyRectangle和MyOval，其中MyShape是其他三个类的父类。MyShape为抽象类，包括图形位置的四个坐标；一个无参的构造方法，将所有的坐标设置为0；一个带参的构造函数，将所有的坐标设置为相应值；每个坐标的设置和读取方法；abstract void draw(Graphics g)方法。MyLine类负责画直线，实现父类的draw方法；MyRectangle负责画矩形，实现父类的draw方法；MyOval负责画椭圆，实现父类的draw方法。编写一个应用程序，使用上面定义的类，随机选取位置和形状，绘制20个图形。(Defines four classes, MyShape, MyLine, MyRectangle and MyOval, which MyShape the other three parent class. MyShape is an abstract class, including graphics position four coordinates a no-argument constructor, all the coordinates are set to 0 a parameterized constructor, all the coordinates is set to the corresponding values each coordinate set and reading method abstract void draw (Graphics g) method. MyLine class is responsible for drawing straight lines, to achieve the draw method of the parent class MyRectangle responsible for drawing rectangles, to achieve the parent class draw method MyOval responsible painted oval, draw method to achieve the parent class. Write an application that uses the class defined above, randomly selected location and shape, draw 20 graphics.)

语言环境:Eclipse Java 学生管理系统连接数据库进行(environment:Eclipse Student Management System Connecting with Database)

这个是我自己写的一个用于网吧的小程序,可以自动计算包时段时间，免去手动计算烦恼(a toy program for netbar)

cas client的源码程序cas client的源码程序(cas client)

说明：  对于刚刚步入 Linux 的菜鸟来说, 难免要有时利用一下 的资源,(For newcomers who have just entered Linux, it is unavoidable to make use of some resources at times.)

建议的安卓音乐播放器，很简单的代码，适合新手学习(Andrews recommended music player, a very simple code, suitable for novice learning)

java io体系中的File类的操作，一个个的小例子，便于初学者学习(File class in java io system operation, a small example easy for beginners to learn)

说明：  实现汽车租赁业务 ,著汽车，租赁时间，租什么样的车。。。。。。。。。(dgrvhtytrhctjrj ujr y yktygivr)