Question

I have this code:

NSString *hString = [NSString stringWithFormat:@"%d", (h * 100)];
    HField.text = hString;

H is 0.721.

HField.text now reads:

1073741824

Any ideas why this isn’t giving me 72?

Answer 1

Ah. The problem is that h seems to be a double or float. Try this:

HField.text = [NSString stringWithFormat: @"%f", (h * 100.0)];

This should work. You have to use %f for floating-point numbers and %d for integers.

Edit

HField.text = [NSString stringWithFormat: @"%d", (NSInteger) round(h * 100.0)];

Round will round the float to an integer. You can alternately use ceil() or floor() to round up or down, respectively. The (NSInteger) cast is there to make sure it is converted to an integer.