Question

Ok I have 8 labels and I want to loop through them but am having no luck.

This is what I have tried.

for (int i; i = 0; i < 10; i++)
{
  double va = [varible1.text doubleValue] + i;
  int j = 0 + I 

  label(j).text= [[NSString alloc]initWithFormat:@"%2.1f", va];
}

This errors out. My labels are named like this label0, label1, label2

Any help would be appreciated.

Answer 1

You should maybe add all your labels to a C array, probably in -viewDidLoad

UILabel* labels[] = { label0, label1, label2, ... };

(not entirely sure about the syntax)
and then access them like

labels[i].text = ...

By the way, I think you’re leaking memory here:

labels[i].text = [[NSString alloc]initWithFormat:@"%2.1f", va];

initWithFormat: will return a string with a retain count of 1. labels[i].text will retain that value again. You should release the string after setting the label’s text. I’d probably just autorelease it here:

labels[i].text = [[[NSString alloc]initWithFormat:@"%2.1f", va] autorelease];

or use stringWithFormat (which returns an autoreleased string):

labels[i].text = [NSString stringWithFormat:@"%2.1f", va];