December 2013
Beginner
576 pages
16h 4m
English
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Choosing Names
In Chapter 2, “Programming in Objective-C,” you used several variables to store integer (int) values. For example, you used the variable sum in Program 2.4 to store the result of the addition of the two integers 50 and 25.
The Objective-C language allows you to store data types other than just integers in variables as well, as long as the proper declaration for the variable is made before it is used in the program. Variables can be used to store floating-point numbers, characters, and even objects (or, more precisely, references to objects).
The rules for forming names are quite simple: They must begin with a letter or underscore (_), and they can be followed by any combination of letters (uppercase or lowercase), underscores, ...
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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.
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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.