实验11：装饰模式
本次实验属于模仿型实验，通过本次实验学生将掌握以下内容：
1、理解装饰模式的动机，掌握该模式的结构；
2、能够利用装饰模式解决实际问题。
[实验任务一]：手机功能的升级
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。
实验要求：
1. 提交类图；
2. 提交源代码；
JAVA
public class Changer implements Phone{
private Phone phone;
public Changer(Phone p) {
this.phone=p;
}
public void voice() {
phone.voice();
}
}
public class ComplexPhone extends Changer{
public ComplexPhone(Phone p) {
super(p);
System.out.println("ComplexPhone");
}
public void zhendong() {
System.out.println("会震动！");
}
public void dengguang() {
System.out.println("会发光！");
}
}
public class JarPhone extends Changer{
public JarPhone(Phone p) {
super(p);
System.out.println("Jarphone");
}
public void zhendong() {
System.out.println("会震动！");
}
}
public interface Phone {
public void voice();
}
public class SimplePhone implements Phone{
public void voice() {
System.out.println("发出声音！");
}
}
public class Client {
public static void main(String[] args) {
Phone phone;
phone=new SimplePhone();
phone.voice();
JarPhone jarphone=new JarPhone(phone);
jarphone.voice();
jarphone.zhendong();
ComplexPhone complexphone = new ComplexPhone(phone);
complexphone.zhendong();
complexphone.dengguang();
}
}
C++
#include <iostream>
using namespace std;
class Phone
{
public:
virtual void receiveCall(){};
};
class SimplePhone:public Phone
{
public:
virtual void receiveCall(){
cout<<"发出声音!"<<endl;
}
};
class PhoneDecorator:public Phone {
protected:
Phone *phone;
public:
PhoneDecorator(Phone *p)
{
phone=p;
}
virtual void receiveCall()
{
phone->receiveCall();
}
};
class JarPhone:public PhoneDecorator{
public:
JarPhone(Phone *p):PhoneDecorator(p){}
void receiveCall()
{
phone->receiveCall();
cout<<"会震动！"<<endl;
}
};
class ComplexPhone:public PhoneDecorator{
public:
ComplexPhone(Phone *p):PhoneDecorator(p){}
void receiveCall()
{
phone->receiveCall();
cout<<"会发光！"<<endl;
}
};
int main()
{
Phone *p1=new SimplePhone();
p1->receiveCall();
cout<<"Jarphone"<<endl;
Phone *p2=new JarPhone(p1);
p2->receiveCall();
cout<<"ComplexPhone"<<endl;
Phone *p3=new ComplexPhone(p2);
p3->receiveCall();
return 0;
}
3.注意编程规范。