做的网站怎么让百度收录,wordpress 嵌套软件,阿凡达做网站电话,贵阳网站设计多少钱1.装饰器模式
要素#xff1a;装饰器#xff0c;装饰对象 为待装饰对象中某一结构特征添加内容#xff0c;而不是新建一个特征
/*** 装饰对象*/
public interface Shape {public void draw();
}
/*** 具体装饰对象*/
public class Circle implements Shape{private String…1.装饰器模式
要素装饰器装饰对象 为待装饰对象中某一结构特征添加内容而不是新建一个特征
/*** 装饰对象*/
public interface Shape {public void draw();
}
/*** 具体装饰对象*/
public class Circle implements Shape{private String TAG Circle;Overridepublic void draw() {Log.d(TAG,draw circle);}
}/*** 装饰器*/
public abstract class ShapeDecorator implements Shape{protected Shape shape;private String TAG ShapeDecorator;public ShapeDecorator(Shape shape) {this.shape shape;}
}
/*** 具体装饰器当只有一个待装饰对象时可不需要抽象装饰器*/
public class ColorDecorator extends ShapeDecorator {private String TAG ColorDecorator;public ColorDecorator(Shape shape) {super(shape);}//原结构方法Overridepublic void draw() {shape.draw();setColor();}//给原结构添加的装饰private void setColor() {Log.d(TAG,set color);}
}//测试
Circle circle new Circle();
ColorDecorator colorCircle new ColorDecorator(circle);
colorDecorator.draw();输出log
