装饰模式——java实现
问题描述;
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:

运行截图:

代码:
//Phone.java
package shiyan11;
public interface Phone {
public void call();
}
//SimplePhone.java
package shiyan11;
public class SimplePhone implements Phone{
public SimplePhone(){
System.out.println("手机收到来电");
}
public void call(){
System.out.println("发出声音:主人来电话啦!");
}
}
//UpgradePhone.java
package shiyan11;
public class UpgradePhone implements Phone{
private Phone phone;
public UpgradePhone(Phone a){
phone=a;
}
public void call(){
phone.call();
}
}
//JarPhone.java
package shiyan11;
public class JarPhone extends UpgradePhone{
public JarPhone(Phone phone){
super(phone);
System.out.println("***增加振动的功能***");
}
public void shoke(){
System.out.println("振动:嗡嗡嗡");
}
}
//ComplexPhone.java
package shiyan11;
public class ComplexPhone extends UpgradePhone{
public ComplexPhone(Phone phone){
super(phone);
System.out.println("***增加闪光功能***");
}
public void light(){
System.out.println("灯光闪烁:咔嚓");
}
}

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