2023/10/16 每日总结

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。

类图

 

源代码

package org.test11;

public interface Phone {
    public void call();
}
package org.test11;

public class PhoneDecorator implements Phone{
    private Phone phone;

    public PhoneDecorator(Phone phone) {
        this.phone = phone;
    }

    @Override
    public void call() {

        System.out.println("打电话");
    }
}
package org.test11;

public class JarPhone extends PhoneDecorator{

    public JarPhone(Phone p) {
        super(p);
        System.out.println("Jarphone");
    }
    public void shake(){
        System.out.println("震动");
    }
}
package org.test11;

public class SimplePhone implements Phone{
    public SimplePhone() {
        System.out.println("simple phone");
    }

    @Override
    public void call() {
        System.out.println("打电话");
    }
}
package org.test11;

public class ComplexPhone extends PhoneDecorator{

    public ComplexPhone(Phone phone) {
        super(phone);
        System.out.println("complex phone");
    }
    public void shake(){
        System.out.println("震动");
    }
    public void twinkle(){
        System.out.println("闪烁");
    }
}
package org.test11;

public class Client {
    public static void main(String[] args) {
        Phone p1=new SimplePhone();
        p1.call();
        ComplexPhone p2 = new ComplexPhone(p1);
        p2.shake();
        p2.call();
        p2.twinkle();
        JarPhone jarPhone = new JarPhone(p1);
        jarPhone.shake();
        jarPhone.call();

    }
}