Effective Java By Joshua Bloch: Item1 - Static Factory Method

Question

I am reading the Effective Java by Joshua Bloch and I have question about Item1 Static Factory Method.

Quote[Bloch, p.7]<

Answer 1

1) I don't understand your question here. Collection is the interface and Collections has some factory methods like emptyList

2) E.g the List instance that is returned by Collection.emptyList is an instance of a private class that implements the List interface.