ViewTableUI cell loading problem

Helo! How can i convert a NS开发者_如何转开发MutableArray object to a NSString ? i try to do something like

cell.textLabel.text = [cars objectAtIndex:indexPath.row];

But it doesn't work, my app crashes. If i do something like

cell.textLabel.text =@"yes";

The app loads very nicely(but instead of the elements from the "cars" NSMutableArray i have a view table filled with "yes") . Any idea what the problem is ?

Is the NSMutableArray alloc'd and init'd properly? If you don't call cars = [[NSMutableArray alloc] init] before you use it, the array will not respond to adding objects to it. Make sure that's not the case. Also make sure that the elements in the cars array are NSStrings.

Make sure your cards contains enough cars, if the indexPath.row is large than the cards's count-1, it will crash.