Java String.split() sometimes giving blank strings

Question

I\'m making a text based dice roller. It takes in strings like \"2d10+5\" and returns a string as a result of the roll(s). My problem is showing up in the tokenizer that spl

Answer 1

I'd recommend simple matching rather than splitting:

Matcher matcher = Pattern.compile("([1-9]*)(d[0-9%]+)([+-][0-9]+)?").matcher(string);
if(matcher.matches()) {
    String first = matcher.group(1);
    // etc
}

No guarantee for the regex, but I think it will do...