Trying to use a number from a TextField

[rune-...@hotmail.com]

I am trying to use a TextField for an input, then use only the numbers in the String.

My code looks like:

  String weightTotal = findTextField(c).getText();

     Matcher m = Pattern.compile("(?!=\\d\\.\\d\\.)([\\d.]+)").matcher(weightTotal);
              while (m.find()) {
                   double d = Double.parseDouble(m.group(1));
                   bags.setWeightTotal(d);
        }

But for some reason when it comes to compiling i am told "error: package java.util.regex does not exist
import java.util.regex.Matcher;" even tho i have in imported

[Shai Almog]

At this point in time we don't support the regex package from JavaSE.
We would like to introduce regex support in the future but it isn't builtin at the moment.
Steve implemented a regex library for Codename One though: https://github.com/shannah/cn1-regex

[rune-...@hotmail.com]

Okay thanks, are there any recommended solutions to this using the cno package?

Otherwise ill go ahread and implement the regex library

[Shai Almog]

We usually just define the constraint to numeric. Using the setConstraint flag.
A validate for number is actually pretty easy e.g. Integer.parseInt() will just throw an exception for an invalid number.