private static void Cook(Vegetable vegetable)
{
if (vegetable == null)
{
throw new ArgumentNullException("Cannot pass null to 'Cook'");
}
Console.WriteLine(vegetable.GetType().Name + " is being prepared");
}
public static void Peel(Vegetable vegetable)
{
if (vegetable == null)
{
throw new ArgumentNullException("'vegetable' must be a 'Vegetable' object");
}
vegetable.IsPealed = true;
}
public void AddVegetable(Vegetable vegetable)
{
if (vegetable == null)
{
throw new ArgumentNullException("Added vegetable cannot be null. It should be of type 'Vegetable'.");
}
this.vegetablesList.Add(vegetable);
}