how to check the number of digits in a number 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: count the number of digits in an integer in java

import java.util.Scanner;
public class CountingDigitsInInteger {
   public static void main(String args[]){
      Scanner sc = new Scanner(System.in);
      int count = 0;
      System.out.println("Enter a number ::");
      int num = sc.nextInt();
      while(num!=0){
         num = num/10;
         count++;
      }
      System.out.println("Number of digits in the entered integer are :: "+count);
   }
}