The Pragmatic Craftsman :: Simplicity from complexity : by Stanley Kubasek ::

You want Java examples? Plenty of examples? Ton of examples? Then here it is. Fred Swartz created a very good Java resource: Java examples in pretty much all areas of the language. Autoboxing, Maps, Strings, ArrayLists, you name it — there is an example there. It’s great! I love it.

Java Programming Notes from Fred Swartz

If you’re interested, he also has database notes with plenty of db examples.