If I have a `UILabel`:

```
USD_time.text = [NSString stringWithFormat:@"%@ %.2dm %.2ds", pre, min, sec];

```

Is it possible to reference the `UILabel` as a variable?

Ex:

```
NSString *myLabel = @"USD_time";
myLabel.text =  [NSString stringWithFormat:@"%@ %.2dm %.2ds", pre, min, sec];

```

I know this does not work, I am unsure what the proper format would be. Also I am unsure what this is called. 

Thank so much.