how to check number of digits in java code example

Example 1: java how to find length of int

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

Example 2: find number of digits in a number java

(int)Math.floor(Math.log10(Your_number_name_goes_here) + 1);