concatenating strings

Question

NSMutableArray * oneText = [[NSMutableArray alloc] init];
[oneText addObject:[arraySystem objectAtIndex:[countImage intValue]]];
[oneText addObject:@".png"];
NSString *oneTextText=[oneText objectAtIndex:0];
[oneTextText stringByAppendingString:[oneText objectAtIndex:1]];
NSLog(oneTextText);

Why can't the above code print 'Lenght.png'? as [arraySystem objectAtIndex:[countImage intValue]] is equal to 'Lenght' it prints only 'Lenght'

ahmet emrah · Accepted Answer · 2010-02-23 14:31:05Z

4

put a "oneTextText=" when calling stringByAppendingString, it should be:

oneTextText = [oneTextText stringByAppendingString:[oneText objectAtIndex:1]];

answered Feb 23, 2010 at 14:31

ahmet emrah

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2 Comments

Christopher Lightfoot Over a year ago

This one gets me all the time; You get used to it eventually and the reference docs are your friend! :-D

user265961 Over a year ago

thanks a lot for the quick reply. i thought it only had to return on itself.

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