November 2013
Beginner
375 pages
10h 14m
English
Content preview from Objective-C Programmer's Reference
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Chapter 3
Strings and Container Classes
In this chapter I discuss some of the most common classes available in the Foundation framework. In particular, I discuss the NSString class, used to manipulate all character sequences in Objective-C. NSString offers a convenient interface to create strings, retrieve part of a string, compare string values, and convert them into other formats.
Another important class in the Foundation framework is NSNumber. Numbers are one of the most basic concepts in computer programming, and they are usually handled by the C language as native data types. However, there are times when a number needs to be passed to or stored by other objects. When that is necessary, a wrapper class such as NSNumber is the best way ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.