How to create int values with '0' prefix

Question

I am using Objective-C and trying to create int values that are between 1-99 and if less than 10 I would like them to show as 01, 02, 03, 04, 05, etc. Can anyone tell me how to do that?

Thanks!

Answer 1

Besides PengOne's answer, you could also use a format string.

NSLog(@"%02d", 3);

says 'print the following int with at least 2 digits' and will add the leading 0 if it only has one. It will print

03

Or if you want an NSString,

NSString *tst = [NSString stringWithFormat:@"%02d", 5];

Answer 2

You can simply print i with a 0 when it's less than 10 using

NSLog(@"%@%d", (i<10 ? @"0" : @""), i );

Alternately, if you want a string,

NSString *paddedNum = [NSString stringWithFormat:@"%@%d",(i<10 ? @"0" : @""),i];