Way to get number of digits in an int?

Question

Is there a neater way for getting the number of digits in an int than this method?

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

Answer 1

A really simple solution:

public int numLength(int n) {
  for (int length = 1; n % Math.pow(10, length) != n; length++) {}
  return length;
}