Way to get number of digits in an int?

Question

Is there a neater way for getting the length of an int than this method?

int length = String.valueOf(1000).length();

Answer 1

Your String-based clarification is absolutely OK, there is zero "un-neat" regarding it. You have to understand that mathematically, numbers don't have a length, nor do they have digits. Length and digits are both parts of a physical representation of a number in a specific base, i.e. a String.

A logarithm-based answer does (some of) the identical things the String-based one does internally, and apparently does so (insignificantly) ready because it only produces the length and overlooks the digits. But I wouldn't count it more obvious in intent - and that's the common major factor.