objective-c fetching array elements?

Question

this line of code gives the ans. 2 (which is right)

int def = arc4random() % 2;
NSLog(@"%@",[uniqueNumbers objectAtIndex:def]);

but when i use

int def = arc4random() % 2;
//NSLog(@"%@",[uniqueNumbers objectAtIndex:def]);
c1 = (int)[uniqueNumbers objectAtIndex:def];
NSLog(@"%d", c1);

it gives 115669616. where c1 is an integer. what is the problem?

Can you explain why you would do it a different way when the first way works? — Popeye
– Popeye, Commented Aug 21, 2012 at 12:34
because its not about just print the element of array, i used NSLog here just for understanding, anyway i solved this issue. — Bharat
– Bharat, Commented Aug 21, 2012 at 12:41
OK. I just couldn't understand the relevance of doing it another way when it worked already, but if it was just so you could understand the difference that makes sense. — Popeye
– Popeye, Commented Aug 21, 2012 at 12:50
OK, please dont mind and thanks for your interest in helping me. — Bharat
– Bharat, Commented Aug 21, 2012 at 13:00

Johannes Fahrenkrug · Accepted Answer · 2012-08-21 12:10:46Z

3

You get an NSNumber instance back. You need to unbox it by calling intValue on it, then you'll be good to go.

Johannes.

answered Aug 21, 2012 at 12:10

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Comments

Nick Moore · Accepted Answer · 2012-08-21 12:12:40Z

1

Try c1 = [[uniqueNumbers objectAtIndex:def] intValue];.

answered Aug 21, 2012 at 12:12

Nick Moore

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justin · Accepted Answer · 2012-08-21 12:11:02Z

0

NSArray holds objects, not integers. that cast to int is not valid.

answered Aug 21, 2012 at 12:11

justin

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