1、目標

//目標
public interface IDesigner {

	public void drawPicture();
	
	public void findIdea();
	
	public void thinkUE();
	
	public void showPicture();
}

2、預設介面卡

//預設介面卡
public abstract class Designer implements IDesigner{

	public void drawPicture(){
		System.out.println("畫畫！");
	}
	
	public void findIdea(){
		System.out.println("尋找靈感！");
	}

}
 

3、介面卡

//介面卡1
public class CarDesigner extends Designer{

	@Override
	public void thinkUE() {
		System.out.println("思考汽車的使用者體驗！");
	}

	@Override
	public void showPicture() {
		System.out.println("辦汽車設計展！");
	}

}

//介面卡2
public class HouseDesigner extends Designer{

	@Override
	public void thinkUE() {
		System.out.println("思考房屋的使用者體驗！");
	}

	@Override
	public void showPicture() {
		System.out.println("辦房屋設計展！");
	}

}
 

4、消費者

public class Customer {

	public static void main(String[] args) {
		
		CarDesigner carDesigner=new CarDesigner();
		carDesigner.drawPicture();
		carDesigner.findIdea();
		carDesigner.thinkUE();
		carDesigner.showPicture();
		
		System.out.println("----------------------");
		
		HouseDesigner houseDesigner=new HouseDesigner();
		houseDesigner.drawPicture();
		houseDesigner.findIdea();
		houseDesigner.thinkUE();
		houseDesigner.showPicture();
	}

}