java program to find digits in a given number

import java.util.Scanner;
class sumit3
{
public static void main(String[]args)
{
Scanner sc=new Scanner(System.in);
int num=sc.nextInt();
int count=0;
if (num==0)
System.out.println("1");
else
{
while(num!=0)
{
num=num/10;
count=count+1;
}
System.out.println("Digits in number="+count);
}
}
}