public void PrintVegetarianMenu()
{
Iterator iterator = allMenus.CreateIterator();
Console.WriteLine("\nVegetarian menu\n----");
while (iterator.HasNext())
{
MenuComponent menuComponent = (MenuComponent)iterator.Next();
try
{
if (menuComponent.Vegetarian)
{
menuComponent.Print();
}
} catch (InvalidOperationException e) { }
}
}
public object Next()
{
if (HasNext())
{
Iterator iterator = (Iterator)stack.Peek();
MenuComponent component = (MenuComponent)iterator.Next();
if (component is Menu)
{
stack.Push(component.CreateIterator());
}
return(component);
}
else
{
return(null);
}
}