I think there is a sample chapter on the O'Reilly site - I'll have to check. But I believe it's a chapter that didn't change significantly from the first edition. As I said on another post, if you already have the 1st edition, we'd recommend that you go to the bookstore and skim through the collections / generics chapter - that's about 80% of what's new in the book.
Spot false dilemmas now, ask me how!
(If you're not on the edge, you're taking up too much room.)