ReverseNumber

package CodeAcademy_5_Loops_And_Arrays;

import java.util.Scanner;

public class ReverseNumberDemo
{
  public static void main(String[] args)
  {
    Scanner scanner = new Scanner(System.in);
    System.out.println("Enter a whole number: ");
    String stringAsNumber = scanner.nextLine();
    int number = 0;
    int digit;


    for (int i = 0; i < stringAsNumber.length(); i++) {
      char c = stringAsNumber.charAt(i);
      if (!Character.isDigit(c)) {
        System.out.println("Input is not a digit. Enter a new number: ");
        stringAsNumber = scanner.nextLine();
      }else{
        number = Integer.parseInt(stringAsNumber);
        break;
      }

    }


    while (number != 0) {
      digit = number % 10;
      System.out.print(digit);
      number /= 10;
    }

  }
}