static void Main(string[] args)
{
Coffee normalCoffee = new Coffee(CoffeeSize.Normal);
Coffee doubleCoffee = new Coffee(CoffeeSize.Double);
Console.WriteLine("The {0} coffee is {1} ml.", normalCoffee.Size, (int)normalCoffee.Size);
Console.WriteLine("The {0} coffee is {1} ml.", doubleCoffee.Size, (int)doubleCoffee.Size);
Console.WriteLine("{0:f2}lv",normalCoffee.CalcPrice(normalCoffee.Size));
}
public double CalcPrice(Coffee.CoffeeSize coffeSize)
{
switch (coffeSize)
{
case CoffeeSize.Small: return 0.20;
case CoffeeSize.Normal: return 0.30;
case CoffeeSize.Double: return 0.60;
case CoffeeSize.Overwhelming: return 1.20;
default: throw new InvalidOperationException("Unsupported coffee quantity: " + (int)coffeSize);
}
}