模式：行為型模式

? 架構圖

? 代碼

接口

public interface Image {
    public void display();
}

Image 實現

public class RealImage implements Image {
    @Override
    public void display() {
        System.out.println("real Image");
    }
}

Image 代理

public class ProxyImage implements Image {

    private Image image;

    public ProxyImage(Image image) {
        this.image = image;
    }

    @Override
    public void display() {
        image.display();
    }
}
 

public class ProxyDemo {
    public static void main(String[] args) {
        Image image = new RealImage();
        Image proxy = new ProxyImage(image);
        proxy.display();
    }
}

設計模式_靜態代理模式