//豆浆调料
public class Soy extends CondimentDecorator{
Beverage beverage;
public Soy(Beverage
b){
this .beverage =
b;
}
@Override
public String getDescription()
{
return beverage .getDescription()
+ ", Soy";
}
@Override
public double cost()
{
return beverage .cost()
+ 0.15;
}
}
-----------------测试
public class StarbuzzCoffee
{
public static void main(String[]
args) {
Beverage b = new Espresso();
System. out .println(b.getDescription()
+ ", $" +b.cost());
Beverage b2 = new DarkRoast();
b2 = new Mocha(b2 );
b2 = new Mocha(b2 );
b2 = new Soy(b2 );
System. out .println(b2.getDescription()
+ ", $" +b2.cost());
}
}
