Thank you. These both look great. And both cover up to Java 17. The complete reference looks like it's got a new edition due to be published in March so I might get 'in a nutshell' for now, and then the new version of the complete reference when it's out if I feel like I still want more :-D Simon

The US taxpayer's dollars at rest. :sigh: Freedom is the freedom to say that two plus two make four. If that is granted, all else follows. -- 6079 Smith W.

No rest for the weary! :laugh: There was only one day over the last two weeks that I did not work as I have a looming deadline for a new project. (self-imposed) As for retirees, they are a big part of why I needed to work through the holidays/weekends...also a target of my one and only new year's resolution. :) "Go forth into the source" - Neal Morse "Hope is contagious"

is it f*ck In a closed society where everybody's guilty, the only crime is getting caught. In a world of thieves, the only final sin is stupidity. - Hunter S Thompson - RIP

Got it last year! Really interesting guy, if you haven't look up Tested on YouTube some of the builds he does are clever and he tells you why things are done that way (and the early one have Jamie from Mythbusters)

The original Sudoku prototype.