Having been distant from Java for last 1 year or so, I think I started feeling that I am bit out of touch and might be missing the latest which might have turned up in CAFE during this period. I started to pick it up from CAFEBABE as that's where I left it ;-)
While googling for CAFEBABE, this is the link I found and I liked it a lot, even if for fun purprose. There are other links but not so precise with good insights about the history of the language. If you may wish to read.. http://suprgeek.wordpress.com/2009/07/29/a-java-old-timer/
Happy Reading
