Day03

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.)

说明：  零工劳务管理信息系统，用户注册，登陆，发布信息(Gig labor management information system, user registration, login, release information)

java程序员参考资料，JAVA的一些基本内容(java programming materials,reference of JAVA development test)

说明：  erp系统，包含生产，销售，以及一系列功能，有BUG(Erp system, including production, sales, and a series of functions, has bugs)

TC35 短信猫开发包，可以参考使用，有不懂的地方可以联系沟通学习。(TC35 SMS cat kit, you can use and reference, there do not know where you can contact communication and learning.)

Java Swing是目前图形界面设计的主流开发工具，本书从实用的角度出 发，通过大量实例全面介绍Java Swing中各种组件的应用及图形界面的开发 技术。(Java Swing GUI design is currently the mainstream of development tools, from a practical point of view the book Hair, comprehensive introduction and development of various components of Java Swing application and a graphical interface through a lot of examples Technology.)

说明：  高级程序语言设计课程JAVA部分第八次作业第一小题(Topic 1 of the 8th assignment of JAVA in Advanced Programming Language Design Course)

Java实现主曲线的生成过程，使用多项式线性算法。(Java implementation of the master curve generation process, using a linear polynomial algorithm.)

java applet 网络通讯小程序，最简单的聊天程序(java applet small network communications procedures, the most simple procedures Chat)

实现扑克牌，一副牌中抽去大小王剩下52张（如果初练也可只用1～10这40张牌)，任意抽取4张牌（称牌组)，用加、减、乘、除（可加括号)把牌面上的数算成24。每张牌必须用一次且只能用一次，如抽出的牌是3、8、8、9，那么算式为（9-8)×8×3或3×8+（9-8)或（9- 8÷8)×3等。(In order to realize playing cards, 52 cards are removed from a deck (only 40 cards can be used for the first practice). Four cards are randomly selected (called card groups). The number on the deck is calculated as 24 by adding, subtracting, multiplying and dividing (brackets can be added). Each card must be used once and only once. If the drawn card is 3, 8, 8, 9, the formula is (9-8)*8*3 or 3*8+ (9-8) or (9-8 8)*3)