设计模式实验三(2)

System.out.println(\ } } ShapeFactory.java public class ShapeFactory { public static Shape produceShape(String shape) throws UnsupportedShapeException { if (shape.equals(\ System.out.println(\ return new Circle; } else if(shape.equals(\ System.out.println(\ return new Triangle; } else if(shape.equals(\ System.out.println(\ return new Rectangle; } else { throw new UnsupportedShapeException( UnsupportedShapeException use); } } } Client.java public class Client { public static void main(String args[]){ } } UnsupportedShapeException.java public class UnsupportedShapeException extends Exception{ public UnsupportedShapeException() { System.out.println(\绘制图形异常，请确认输入图形。\ 6

} }

3. 类图：

实现代码： ImageReader .java public interface ImageReader { } JpgReader.java public class JpgReader implements ImageReader { } GifReader.java public class GifReader implements ImageReader { public void readImage(){ System.out.println(\public void readImage(){ } System.out.println(\ public void readImage(); 7

} } ImageReaderFactory.java public interface ImageReaderFactory { } JpgReaderFactory.java public class JpgReaderFactory implements ImageReaderFactory { public ImageReader produceImageReader(){ System.out.println(\return new JpgReader(); public ImageReader produceImageReader(); } } GifReaderFactory.java public class GifReaderFactory implements ImageReaderFactory { } Client.java public class Client { public static void main(String args[]){ } }

4. 类图：

public ImageReader produceImageReader(){ } System.out.println(\return new GifReader(); 8

实现代码： AbstractButton.java public interface AbstractButton { } GreenButton.java public class GreenButton implements AbstractButton { } public void action(){ } System.out.println(\ BlueButton.java public class BlueButton implements AbstractButton { } AbstractTextbox.java public interface AbstractTextbox{ } public void action(); public void action() { } System.out.println(\ 9

GreenTextbox.java public class GreenTextbox implements AbstractTextbox { } BlueTextbox.java public class BlueTextbox implements AbstractTextbox { } AbstractComboBox.java public interface AbstractComboBox { } GreenComboBox.java public class GreenComboBox implements AbstractComboBox { } BlueComboBox.java public class BlueComboBox implements AbstractComboBox { } SkinFactory.java public void action() { } System.out.println(\public void action() { } System.out.println(\public void action(); public void action() { } System.out.println(\public void action() { } System.out.println(\ 10