What's the most useful and complete Java cheat sheet?

I need a cheat sheet for Java and started looking around, but could not find one that seemed "canonical" - which surprised me considering how widespread the language is. Could experienced Java coders please suggest a cheat sheet that is useful (organized so well you actually use it often) and complete (covers real-world daily usage) please?

By contrast, here's what I'd consider a canonical cheat sheet for Python: http://rgruet.free.fr/PQR26/PQR2.6.html

It is complete (syntax, types, statements, built-ins, common modules, idioms) and useful (well-organized: sectioned and hyperlinked; easy to search, and easy to explore).

Also, I have looked at the listing here already: http://devcheatsheet.com/tag/java/ and did not find a cheat sheet comparable to RGruet's Python cheat sheet above. The top listing in Google for "Java cheat sheet" is http://www.cs.princeton.edu/introcs/11cheatsheet/ which is fairly complete, but not organized to be useful. There's gotta' be something better out there!? BTW, it need not fit on 1 page. I'm aware of the Java API docs, but that's more what I'd expect a cheat sheet to link to, not be.

Update

Some SO members thought this question was subjective, but I think I explained my criteria to be fairly objective: completeness (content) and usefulness (presentation) are not hard to judge in this context. I've accepted one of the more useful answers, but remain surprised that Java doesn't have a canonical cheat-sheet.

Its the best one, LOL. The python one, again, is unconfortable for me.

Imre L 2010-10-08 18:08:33

No requirement of being 1 page long. :) I know of the API docs, I'd expect a cheat sheet to link to there, but it's not a cheat sheet itself.

limist 2010-10-08 18:11:29

It's a smart-alecky answer... but also the correct one. Java doesn't use a boatload of invocation options and environmental variables the way that Python does. Among the information on that Python "cheat sheet" that actually IS applicable to Java, 99% is cross-language stuff that you probably already know. The main thing Java developers check on a day-in-day-out basis is the standard API Javadoc.

Steve Perkins 2010-10-08 18:14:53

download.oracle.com :(

abhin4v 2010-10-08 20:38:19

@Steve: thanks, not sure what you mean by Python's "boatload of invocation options and environmental variables" — generally things work fine by typing "python myprog.py" But in any case, the point of a cheat-sheet is to aid one's memory; most cheat-sheets presume the reader is already very comfortable with core concepts like control flow, reserved keywords, data structures, etc.

limist 2010-10-13 22:06:06

Thanks for the first link, but the pdf is fairly old (1999) and that format (no hyperlinks, no top-level links to subsections) is not what I'm hoping for.

limist 2010-10-08 18:12:50

You'd be surprised how little of it has changed. Supplementing that one with the Javadoc API from your version of Java would be ideal.

Erick Robertson 2010-10-08 18:23:03

@Erick: thanks again for the tip; I may just use parts of this in my own cheat-sheet.

limist 2010-10-13 22:02:01

except for the My Little Pony colors...

Erick Robertson 2010-10-08 18:23:38

Mindprod.com Java resources, by the way, are great.

Grodriguez 2010-10-08 18:38:47

Thanks, that's closer to what I'm looking for - wish the colors were easier on the eyes, but the non-color design aspects/organization are decent.

limist 2010-10-08 19:46:18

Accept it if it is provides the solution to your question.

Mike 2010-10-08 20:48:53

Mindorid isnjustbanother hobby site, and it has it's problems and errors just like the rest of them. Don't use these, use them official specifications.

EJP 2010-10-09 00:59:09

Mindprod is just another hobby site, and it has its problems like the rest of them. Don't use these: use the official specifications and Javadoc.

EJP 2010-10-09 09:24:06

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What's the most useful and complete Java cheat sheet?

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