Objective-C Tutorial - Lesson 24: NSArray

Objective-C® for Dummies® by Neal Goldstein, Copyright © 2009 by Wiley Publishing, Inc., is the main source of information for this video.

In this lesson I teach you guys about the NSArray object. A NSArray is different from a NSMutableArray because once you initialize it, you can't add or remove objects from it.

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Objective-C Tutorial
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Objective C programming Tutorial

[Taxprep]

Mean to say newest version of Xcode sorry

[stephenw]

the message "europeTransactions[1];" will not work in xCode 4.x and greater. instead you must message the object directly: "[[europeTransactions objectAtIndex:1] doubleValue];"

[mccann]

Great tutorial series! I've been going through all the videos and really find them helpful. I've got a question about the code in this video though:
Where you access the array in NSLog, you use europeTransactions[1] and just print it. Can you explain the difference between your version and using [europeTransactions objectAtIndex:0] doubleValue] instead? It seems like some kind of pointer issue, but I just don't understand well enough to figure it out yet.

[encompass]

@Ichiban1337 I had the same problem with my code and altered it in the same way also I am using ver 4.1 as well. In the video he's clearly using an older version of Xcode. Hope this helps

[cristiant]

when i display %.2f in the NSLog i get like a 50 digit number, but if i use %@ i get the 200 in "int" why?

[rgarafulicm]

and how do you acces the different objects in the array? as in NSMutableArray?

[oesha]

how do you un install programs on the mac?

[claus]

@oesha28 lol, how/why did u get to this video to find an answer to that??

[RestorationsFOD]

hi, is this taken from objective c for dummies? thanks, Ryan

[Taxprep]

it always suggests that i change "%.2f" to "%@" for some reason
FYI im running mountain lion