设计模式（Java）-装饰者模式

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类图

这里写图片描述

Coding

package DecoratorPattern;/** * Created by jiangcw on 2017/2/3. */public abstract class Component {    public abstract void operate();}

package DecoratorPattern;/** * Created by jiangcw on 2017/2/3. */public class ConcreteComponent extends Component{    @Override    public void operate() {        System.out.println("Do something....");    }}

package DecoratorPattern;/** * Created by jiangcw on 2017/2/3. */public abstract class Decorator extends Component{    private Component component =null;    public Decorator(Component _component){        this.component=_component;    }    @Override    public void operate(){        this.component.operate();    }}

package DecoratorPattern;/** * Created by jiangcw on 2017/2/3. */public class Decorator1 extends Decorator {    public Decorator1(Component _component){        super(_component);    }    @Override    public void operate() {        System.out.println("Decorator 1.....");        super.operate();    }}

package DecoratorPattern;/** * Created by jiangcw on 2017/2/3. */public class Decorator2 extends Decorator {    public Decorator2(Component _component){        super(_component);    }    @Override    public void operate() {        System.out.println("Decorator 2.....");        super.operate();    }}

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