Archive for January, 2009

Faster Java – Strings

If you’re building a long String in Java, don’t stick String objects together using ‘+’, for example: String str = “Hello”; str = str + world; str = str + “!”; Why not? It’s really slow when you do it a lot! What should you do instead? Use the append(String) method in StringBuffer (Java 1.4.2 [...]

Posted on January 29, 2009 at 7:20 pm by Paul Brabban · Permalink · One Comment
In: Beginners, Development, Java · Tagged with: , , , , , , , ,

Semantic Web@Geekup Sheffield

For anyone curious about this Semantic Web thing, you could check out Ian Ibbo’s introductory slideshow… Geekup Sheffield Semantic Web Primer View SlideShare presentation or Upload your own. (tags: geekupsheff-semweb) It’s the first part of series he’s doing at the Sheffield Geekups over the next few months, so there’s more if your appetite is whetted. [...]

Posted on January 12, 2009 at 5:01 pm by Paul Brabban · Permalink · Leave a comment
In: Development, geekup, Semantic Web · Tagged with: , , ,

Automata Step-By-Step

Automata Step-By-Step The views expressed here are the personal views of the author.

Posted on January 11, 2009 at 10:52 pm by Paul Brabban · Permalink · Leave a comment
In: asides, Computer Science, MSc · Tagged with: , , , ,

Logic for Dummies – Part 1

It seems like one of the things I really have to get my head round if I want to understand some of the principles of computer science is logic. Now, I figured that would be easy. I mean, I can remember truth tables for AND, OR, NOT, NOR, NAND, etc. from school, so how hard [...]

Posted on January 5, 2009 at 11:39 pm by Paul Brabban · Permalink · One Comment
In: Computer Science, Logic, MSc · Tagged with: , , , ,