Objective C Language

Hi, today I would like to explain how to extend classes from the iPhone SDK frameworks. The main idea behind that is not to create loads of classes, one for each functionality, but create custom extensions for the existing ones.

Objective-C is a powerful, easy-to-learn, object-oriented extension to C. Unlike in C++, advanced object-oriented features like dynamic binding, run-time type identification, and persistence are standard features in Objective-C which apply universally and work well together. Moreover, the support for descriptive message names (a la SmallTalk) makes Objective-C code easy to read and understand. Objective-C is supported by the GNU and NeXTSTEP C compilers.

I found this tutorial a while ago and I have no idea who's the author or the original url, if you know please let me know and will add the credit

Objective-C is the primary language used to write Mac software. If you're comfortable with basic object-oriented concepts and the C language, Objective-C will make a lot of sense. If you don't know C, you should read the C Tutorial first.

This tutorial is written and illustrated by Scott Stevenson