Why can't I use "List" as class name of a subclass of UITableViewController?

Why can't I use "List" as class name of a subclass of 开发者_运维知识库UITableViewController?

Because there's a List class already. You shouldn't use it (in fact I'm not sure you can on the iPhone because its interface requires @defs to work), but it's there. It's an old class, inheriting from Object, that provides a mutable array of configurable capacity.