How to use NSArray in objective C. Card Deck on iPhone - objective-c

Question

I´m all new to Objective C and I can´t seem to find how to do this (if it´s even possible).
I have a NSArray filled with 4 Cards (Card = my own Class) and I want to set the text of a label to a NSString which my card objects holds.
In Java I would do something like this:
If I have an Card Array with 4 Cards and theLabel is a String.
theLabel = deck[2].getLabel();
This don´t seem to work on Objective C. My code in Objective C so far:
- (IBAction)nextCard:(id)sender {
theLabel.text = [deck objectAtIndex:j].getLabel;
theImage.image = [deck objectAtIndex:j].getImage;
}
nextCard calls every time I click on a button on the iPhone.
j is an ordinary int that will keep track on which card to show.
It looks like this when I am creating the array:
- (void)viewDidLoad
{
[super viewDidLoad];
ah = [[Card alloc]init];
[ah setLabel:#"label1"];
[ah setCardImage: [UIImage imageNamed:#"3.png" ]];
as = [[Card alloc]init];
[as setLabel:#"label2"];
[as setCardImage: [UIImage imageNamed:#"2.png" ]];
ac = [[Card alloc]init];
[ac setLabel:#"labbel3"];
[ac setCardImage: [UIImage imageNamed:#"1.png" ]];
ad = [[Card alloc]init];
[ad setLabel:#"label4"];
[ad setCardImage: [UIImage imageNamed:#"4.png" ]];
deck = [NSMutableArray arrayWithCapacity:25];
[deck addObject:ah];
[deck addObject:as];
[deck addObject:ac];
[deck addObject:ad];
}
So I would basically want to be able to use methods ob objects stores in a NSArray.
Would really appreciate answers, thanks in advance!

Answer 1

In objective-C the generated getter hasn't the get prefix, so you use it that way:
theLabel = deck[2].label;
Or:
theLabel= [deck[2] label];

Answer 2

Check this:
[deck objectAtIndex:0].label;
or:
[[deck objectAtIndex:0] label];
or:
[[deck objectAtIndex:0] yourMethodWithParameter:#"foo"];

Answer 3

In Objective-C, in most cases the accessor methods are auto generated.
Let us say we have a property named "object"
The getter method is not named like this getObject , where "object" is the property you want to access.
It is named simply by the name of the property like this object
So in your case it should be something like this:
NSString *theLabelString = [[deck objectAtIndex:j] label];
//or this:
NSString *theLabelString = [deck[j] label];
//or this:
NSString *theLabelString = deck[j].label;