tutorials 
Ruby Spin-up: Where Did That Method Come From?
in Ruby added by admin, on 28/1/2008 beginner tutorials examples oo programming
A tutorial that gives a nice background on some object-oriented thinking in Ruby, including classes, superclasses, modules, and singleton methods. It's a straightforward tutorial aimed at those who have gotten their feet wet in Ruby, but not the object-oriented aspects of Ruby.
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Python as Config Language -- Forget XML and INI files
in Python added by admin, on 12/1/2008 configuration-file
A programming language has all the advantages as a language for encoding parameters. I see why it's rare -- too many programmers have spent too much time with MS's abominable INI files and think it's "normal".
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Sorting Data with List and Table Widgets [pdf]
in Ruby added by admin, on 9/1/2008 FXRuby beginner tutorials desktop app framework gui
The simple widgets that we learned about in the previous chapter primarily deal with a single value (if they have any real "value" associated with them at all). FXRuby also provides a number of more complicated widgets for dealing with collections of values.
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Creating Multiple Choice Exam Application Part I
in .NET added by admin, on 7/1/2008 database intermediate xml
This is the first part of a multi-part series. In this series we will cover the scenario of creating a multiple choice exam for the user. In the first part I will cover the design of the application. This will include unit tests, domain objects and NHibernate mapping files
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Using RPC-Style Web Services with J2EE
in Java added by admin, on 6/1/2008 intermediate j2ee rpc webservice
Web Services provide functionality to the Internet, and are seen as the wave of the future. In this article, Martin Bond explains how to use Web Services protocols to join J2EE application components with any other software that supports those protocols. This excerpt is from Chapter (Day) 20, from Teach Yourself J2EE in 21 Days, second edition, by Martin Bond, et. al. (Sams, 2003, ISBN: 0672325586)
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Using raw SQL in django
in Python added by admin, on 3/1/2008 django framework intermediate sql
For a django project I'm working on, I need to run a simple query with COUNT and GROUP BY statements to collect some summary data. I tried working with the model API, and eventually fell back to using raw SQL instead.
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Hands on with Blueprint, a CSS Framework
in CSS added by admin, on 2/1/2008 blueprint design framework
Blueprint is both a CSS Framework and an album by the legendary hip-hop artist Jay-Z. In this article, I am going to be writing about the Blueprint CSS Framework, which provides designers with a solid CSS foundation, including an easy-to-use grid, sensible typography, and a stylesheet for printing.
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Ruby blocks gotchas
in Ruby added by admin, on 31/12/2007 blocks intermediate metaprogramming
There's this thing they say about Ruby - everything is an object. It's true, with very few exceptions, one of them being the block. Well guess what, this little gem of an inconsistency came back to bite me when I was trying to do something involving dynamic redefinition of methods.
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Human-Readable Encryption Keys
in Python added by admin, on 29/12/2007 cryptography intermediate
Somehow, we have to present these random 128-bit keys to the user, and I think I've found a pretty good way. We use RFC 1751, which defines a 'Convention for Human-Readable 128-bit Keys' - basically just a mapping of blocks of bits to strings of English words.
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Globalization and Localization
in .NET added by admin, on 27/12/2007 intermediate localization
Explains how to make international applications customizable to users belonging to different nations, cultures, or regions.
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Python: Some Concurrency Tricks
in Python added by admin, on 27/12/2007 concurrency intermediate
Here are a few concurrency tricks if you're stuck using threads. I used these tricks years ago to write a Swing application in Jython, and I found them to be helpful enough to warrant a blog post, albeit a few years delayed.
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Real World Performance On Boxing Day
in Python added by admin, on 26/12/2007 benchmark jruby
Well, Ruby 1.9.0 landed yesterday, as expected. I’d be remiss if I didn’t start out by thanking matz, ko1, and all the other hackers involved in getting this milestone release out the door. It’s a great step for Ruby, and one that we’ve been waiting a long time for.
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CSS for Accessibility
in CSS added by admin, on 24/12/2007 accessibility beginner tutorials design
CSS is magical stuff. In the right hands, it can transform the plainest of (well-structured) documents into a visual feast. But it's not all fur coat and nae knickers (as my granny used to say). Here are some simple ways you can use CSS to improve the usability and accessibility of your site.
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