I am planning to take SCJP 6 certification. I want to know which book I should pick up to refresh basic concepts of Java. (Java 2 complete reference 5th edition or Java complete reference 7th edition). I had worked with Java few years back. Kindly let me know.
Have a look at our book review pages; unfortunately I couldn't find either of your books in there. You might get other ideas. Remember books are only useful if you actually read them; a book whose style you don't like is simply a large doorstop. See if you can see extracts from books before buying, and whether you can cope with their style first.