import java.util.HashMap;
import java.util.Map;
public class ShapeFactory {
/** 定义形状类型常量 */
public static final int SHAPE_TYPE_CIRCLE=1;
public static final int SHAPE_TYPE_RECTANGLE=2;
public static final int SHAPE_TYPE_LINE=3;
private static Map<Integer,String> shapes=new HashMap<Integer,String>();
static{ //静态代码块，当Java虚拟机加载ShapeFactory类的代码时，就会执行这段代码
// 建立形状类型和形状类名的对应关系
shapes.put(new Integer(SHAPE_TYPE_CIRCLE),"Circle");
shapes.put(new Integer(SHAPE_TYPE_RECTANGLE),"Rectangle");
shapes.put(new Integer(SHAPE_TYPE_LINE),"Line");
}
/** 构造具体的Shape对象，这是一个静态方法 */
public static Shape getShape(int type){
try{
//获得与形状类型匹配的形状类名
String className=shapes.get(new Integer(type));
//运用Java反射机制构造形状对象
return (Shape)Class.forName(className).newInstance();
}catch(Exception e){return null;}
}
}
/****************************************************
* 作者：孙卫琴 *
* 来源：<<Java面向对象编程>> *
* 技术支持网址：www.javathinker.org *
***************************************************/
java面向对象编程源码
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2010-02-02
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java面向对象编程源码 （833个子文件） 
build.bat 2KB build.bat 801B build.bat 619B build.bat 546B build.bat 407B build.bat 373B build.bat 335B build.bat 288B build.bat 281B build.bat 279B build.bat 259B build.bat 247B build.bat 245B build.bat 229B build.bat 229B build.bat 229B build.bat 227B build.bat 227B build.bat 226B MenuDemo.class 4KB LookAndFeelDemo.class 3KB ToggleDemo.class 3KB MyNotePad.class 3KB ChessPanel.class 3KB ATMPlayer.class 3KB PerformanceTester.class 3KB MyClassLoader.class 2KB TextFieldDemo.class 2KB AudioPlayer.class 2KB MyHashSet.class 2KB MyClassLoader.class 2KB MsgDialogDemo$1.class 2KB IconsDemo.class 2KB ComboBoxDemo.class 2KB BoxLayoutDemo.class 2KB CardLayoutDemo.class 2KB BordersDemo.class 2KB PopupMenuDemo.class 2KB ArraysTester.class 2KB User.class 2KB Name.class 2KB TabbedPaneDemo.class 2KB BitSetTester.class 2KB References.class 2KB ObjectSaver.class 2KB Customer.class 2KB ListDemo.class 2KB Gender.class 2KB UseFile.class 2KB LineDrawer.class 2KB Voter.class 2KB GridBagLayoutDemo.class 2KB FileUtil.class 2KB SimpleSwingDemo.class 2KB Queen.class 2KB ColorChanger.class 2KB BaseException.class 2KB ManyEars.class 2KB CustomerComparator.class 2KB MathTool.class 2KB MathTool.class 2KB Redirecter.class 2KB Ghost.class 2KB FormatDataIO.class 2KB ButtonsDemo.class 1KB SynAccesser$Modifier.class 1KB FileChannelTester.class 1KB OvalDrawer.class 1KB Category.class 1KB Machine.class 1KB User.class 1KB PropertiesTester.class 1KB DialogDemo.class 1KB GridLayoutDemo.class 1KB MsgDialogDemo.class 1KB TextAreaDemo.class 1KB PrintStreamTester.class 1KB Machine.class 1KB Stack.class 1KB Machine.class 1KB MenuDemo$ItemHandler.class 1KB RelativeDemo.class 1KB EncodeTester.class 1KB GlobalConfig.class 1KB Machine.class 1KB BigFileTester.class 1KB BorderLayoutDemo.class 1KB Schedule.class 1KB Machine.class 1KB ListInserter.class 1KB Visitor.class 1KB Swaper.class 1KB CalculaterGUI.class 1KB MyNotePad$SaveHandler.class 1KB AdapterDemo.class 1KB Machine.class 1KB TextFieldDemo$ActionListenerB2.class 1KB LookAndFeelDemo$ItemHandler.class 1KB MyNotePad$OpenHandler.class 1KB A.class 1KB共 833 条
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资源评论
yy3yy2012-07-20该资源可用，如果需要可下载
haha8752322012-06-27不错，挺好的，编译后可以通过。
