how to get length of integer in java

1int x = 1234; 
2int lengthOfInt = String.valueOf(x).length(); //convert integer to String
3											  //and get length of the String

1int length = (int) (Math.log10(number) + 1);
2

1int length = 0;
2long temp = 1;
3while (temp <= number) {
4    length++;
5    temp *= 10;
6}
7return length;
8