java 反向打印一个数字

//print all digits of the given number

import java.util.Scanner;

public class Numbers {

    public static void main(String[] args) {
        int num;
        Scanner ip = new Scanner(System.in);
        System.out.print("Enter a number: ");
        num = ip.nextInt();
        while (num > 0) {
            int rem = num % 10;
            System.out.println(rem);
            num = num / 10;
        }
        ip.close();
    }
}

OUTPUT:
Enter a number: 32451234
4
3
2
1
5
4
2
3