abstract class Beverage {
	protected double cost = 0;
	protected String description = "drink";
	public double getcost() {
		return cost;
	}

	public String getdescription() {
		return description;
	}
}

class Coffee extends Beverage {
	public Coffee() {
		description = "coffee";
		cost = 1.2;
	}
}

abstract class CondimentDecorator extends Beverage {
	protected Beverage beverage;
	public double getcost() {
		return cost + beverage.getcost();
	}	

	public String getdescription() {
		return beverage.getdescription() + " with " + description;
	}
}

class SugarDecorator extends CondimentDecorator {
	public SugarDecorator(Beverage bev) {
		this.beverage = bev;
		description = "sugar";
		cost = 0.10;
	}
}

class MilkDecorator extends CondimentDecorator {
	public MilkDecorator(Beverage bev) {
		this.beverage = bev;
		description = "milk";
		cost = 0.2;
	}
}

public class DecoratorDriver {
	public static void main(String[] args)  {
		Beverage bev1 = new Coffee();
		System.out.println(bev1.getdescription() + " $" + bev1.getcost());

		Beverage bev2 = new SugarDecorator(bev1);
		System.out.println(bev2.getdescription() + " $" + bev2.getcost());

		Beverage bev3 = new MilkDecorator(bev1);
		System.out.println(bev3.getdescription() + " $" + bev3.getcost());

		Beverage bev4 = new MilkDecorator(bev2);
		System.out.println(bev4.getdescription() + " $" + bev4.getcost());
	}
}