Scott and I currently have the #1 Oracle cert book on Amazon and the #20 Java book overall from our OCA 8 book. Granted this is misleading since it is a “book just came out” sales bump. But still really cool. It’s also cool to see questions like this one where you can see the reader understands or has a question about a subtle detail.

And thank you to everyone who has been sending us Errata.We are keeping a list on our OCA 8 book page. So far they are minor (typo things that don’t affect content.) Still, it’s good to have a list. That way we can fix them if there is a second printing or we write a Java 9 cert book! Plus if you are puzzled about whether it something is a typo, it is likely someone else reported it!