December 2011
Beginner
600 pages
11h 25m
English
Content preview from Programming in Objective-C, Fourth Edition
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5. Program Looping
In Objective-C, you can repeatedly execute a sequence of code in several ways. These looping capabilities are the subject of this chapter, and they consist of the following:
The for statement
The while statement
The do statement
We start with a simple example: counting numbers.
If you were to arrange 15 marbles into the shape of a triangle, you would end up with an arrangement that might look something like Figure 5.1.
Figure 5.1. Triangle arrangement example
The first row of the triangle contains one marble, the second row contains two marbles, and so on. In general, the number of marbles required to form a triangle containing ...
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