Programs Knowledge

{
	String description = "Unknown Beverage";
	
	public String getDescription()
	{
		return description;
	}
	
	public abstract double cost();
}

{
	public abstract String getDescription();
}

{
	public ProductDarkRoast()
	{
		description = "DarkRoast";
	}
	
	public double cost()
	{
		return 1.99;
	}
}

{
    public ProductEspresso()
    {
        description = "Espresso";
    }
    public double cost()
    {
        return 2.99;
    }
}

{
	public ProductHouseBlend()
	{
		description = "House Blend Coffee";
	}
	
	public double cost()
	{
		return 3.99;
	}
}

{
	Beverage beverage;
	
	public CondimentMocha(Beverage beverage)
	{
		this.beverage = beverage;
	}
	
	public String getDescription()
	{
		return beverage.getDescription() + ", Mocha";
	}
	
	public double cost()
	{
		return 0.2 + beverage.cost();
	}
}

{
	Beverage beverage;
	
	public CondimentSoy(Beverage beverage)
	{
		this.beverage = beverage;
	}
	
	public String getDescription()
	{
		return beverage.getDescription() + ", Soy";
	}
	
	public double cost()
	{
		return 0.4 + beverage.cost();
	}
}

{
	Beverage beverage;
	
	public CondimentWhip(Beverage beverage)
	{
		this.beverage = beverage;
	}
	
	public String getDescription()
	{
		return beverage.getDescription() + ", Whip";
	}
	
	public double cost()
	{
		return 0.6 + beverage.cost();
	}
}

{
	public static void main(String[] args) 
	{
		Beverage beverage1 = new ProductEspresso();
		System.out.println(beverage1.getDescription() 
				+ " $" + beverage1.cost());
		
		Beverage beverage2 = new ProductDarkRoast();
		beverage2 = new CondimentMocha(beverage2);
	    beverage2 = new CondimentMocha(beverage2);
		beverage2 = new CondimentWhip(beverage2);
		System.out.println(beverage2.getDescription()
				+ " $" + beverage2.cost());
		
		Beverage beverage3 = new ProductHouseBlend();
		beverage3 = new CondimentSoy(beverage3);
		beverage3 = new CondimentMocha(beverage3);
		beverage3 = new CondimentWhip(beverage3);
		System.out.println(beverage3.getDescription()
				+ " $" + beverage3.cost());
	}
}