用装饰模式模拟手机功能的升级过程

用装饰模式模拟手机功能的升级过程：简单的手机(SimplePhone)在接收来电时，会发出声音提醒主人；而JarPhone除了声音还能振动；更高级的手机(ComplexPhone)除了声音、振动外，还有灯光闪烁提示。

 

 

 ComplexPhone

public class ComplexPhone extends PhoneDecorator{

	public ComplexPhone(Phone p) {
		// TODO Auto-generated constructor stub
		super(p);
	}
	public void receiveCall() {
		super.receiveCall();
		System.out.println("接受来电,灯光闪烁");
	}

}

JarPhone

public class JarPhone extends PhoneDecorator{

    public JarPhone(Phone p) {
        // TODO Auto-generated constructor stub
        super(p);
    }
    public void receiveCall() {
        super.receiveCall();
        System.out.println("接受来电,手机震动");
    }

}

Phone

public abstract class Phone {

    public abstract void receiveCall();

}

PhoneDecorator

public class PhoneDecorator extends Phone{

    private Phone phone;
    public PhoneDecorator(Phone p) {
        // TODO Auto-generated constructor stub
      if(p!=null) {
          phone=p;
      }else {
          phone=new SimplePhone();
      }
    }
    @Override
    public void receiveCall() {
        // TODO Auto-generated method stub
        phone.receiveCall();
    }

}

SimplePhone

 
public class SimplePhone extends Phone {



    @Override
    public void receiveCall() {
         // TODO Auto-generated method stub
             System.out.println("接受来电,电话响了");        
    }

}

Client

public class Client {

    public static void main(String[]args) {
        Phone p=new SimplePhone();
        p.receiveCall();
        System.out.println("Simple");
        Phone p1=new JarPhone(p);
        p1.receiveCall();
        System.out.println("JarPhone");
        Phone p2=new ComplexPhone(p1);
        p2.receiveCall();
        System.out.println("ComplexPhone");
    }

}

 

 c++代码

#include<iostream>
#include<string>
using namespace std;
class Phone{
public:virtual void receiveCall()=0;
};

class SimplePhone :public Phone{
public:void receiveCall(){
    cout << "接受来电，电话响了" << endl;
}
};

class PhoneDecorator :public Phone{
private:Phone *pho;
public:PhoneDecorator(Phone *p){
    if (p != NULL){
        pho = p;
    }
    else{
        pho = new SimplePhone();

    }
}
       void receiveCall(){
           pho->receiveCall();
       }
};
class JarPhone:public PhoneDecorator{
private:Phone *p;
public: JarPhone(Phone *p):PhoneDecorator(p) {
        // TODO Auto-generated constructor stub
    this->p = p;
}
        void receiveCall(){
        p->receiveCall();
        cout<<"接受来电,手机震动"<<endl;
    }

};
class ComplexPhone :public PhoneDecorator{
private:Phone *p;
public: ComplexPhone(Phone *p) :PhoneDecorator(p) {
    // TODO Auto-generated constructor stub
    this->p = p;
}
        void receiveCall(){
            p->receiveCall();
            cout << "接受来电,灯光闪烁" << endl;
        }

};
int main(){
    Phone *p = new SimplePhone();
    p->receiveCall();
    cout<<"Simple"<<endl;
    Phone *p1 = new JarPhone(p);
    p1->receiveCall();
    cout<<"JarPhone"<<endl;
    Phone *p2 = new ComplexPhone(p1);
    p2->receiveCall();
    cout<<"ComplexPhone"<<endl;
}