Count Odd Digits - JAVA

package com.company;

import java.util.ArrayList;
import java.util.Scanner;

public class Problem {

    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        ArrayList<Integer> list = new ArrayList<>();

        for(int i=0; i<n; i++){
            int num = sc.nextInt();
            list.add(num);
        }

        System.out.println(countOddDigitNumbers(list, n));
    }

    public static int countOddDigitNumbers(ArrayList<Integer> list, int n){
        int count = 0;
        for(int num : list){
            if(hasOddDigits(num))
                count++;
        }
        return count;
    }

    public static boolean hasOddDigits(int num){
        int digits = 0;
        while (num > 0){
            digits++;
            num /= 10;
        }
        return digits%2 == 1;
    }

}