Count the digi in a number

 import java.util.Scanner;  
class Raj   
 {  
  public static void main(String[] args) {
    int num;
    int count = 0;
    Scanner sc = new Scanner(System.in);
    System.out.println("Enter a number: ");
     num = sc.nextInt();
     while(num!=0){
      num = num/10;
      count++;
     }
       System.out.println("Total digit is : "+count);
     }
   }