quangntenemy teaches java 2 is up!

It must be my lucky day. The jackpot is up at rankk, and now qtj2 has finally been published at tbs too. This second challenge of the qtj series will teach you about object oriented programming in Java.

With 2 challenges being published the same day, I only have a "few" things left to do. The applet tutorial has been pending for so long. And some changes need to be made to "Message Me" to make it solvable. Then some more updates to my website, Steganabara, CryptoBox and of course the bbq project ;)

Stay ready for all the good news ;)

OOP

No this post is not about the famous hit Oops! I did it again. It's about Object-Oriented Programming in Java.
Some of you might think, as I recently created the new quangntenemy teaches Java 2 applet challenge, which is mostly about OOP in Java, I should be very good at it. Well, the fact is that I am just above the beginner level, as classified by Java BlackBelt.
While roaming around the Internet looking for resources in preparation for the next belt, I came across this tutorial at Java Boutique. Very good one ;)
I am looking for more tutorials like this, or better, some ebooks about OOP in Java at intermediate level. If you have any recommendation, please let me know :)