count the number of digits in an integer in java

1import java.util.Scanner;
2public class CountingDigitsInInteger {
3   public static void main(String args[]){
4      Scanner sc = new Scanner(System.in);
5      int count = 0;
6      System.out.println("Enter a number ::");
7      int num = sc.nextInt();
8      while(num!=0){
9         num = num/10;
10         count++;
11      }
12      System.out.println("Number of digits in the entered integer are :: "+count);
13   }
14}