Number in Words

/**
 * This program inputs a number greater than 99 and lesser than 1000 and returns the figure in words.
 */
import java.util.*;
public class Number_In_Words
{
    static int[] getPos(int num) //Function to add the digits of the number entered into an int[] array.
    {
        int[] digits = new int[3]; //Stores [Hundreds, Tens, Units].
        String a = Integer.toString(num);
        int i,x;
        for(i=0;i<a.length();i++)
        {
            x = Character.getNumericValue(a.charAt(i));
            digits[i] = x;
        }

        return digits;
    }

    static String getWords(int[] digits)
    {
        String[] hundreds = {"", "One Hundred", "Two Hundred", "Three Hundred", "Four Hundred", "Five Hundred",
                             "Six Hundred", "Seven Hundred", "Eight Hundred", "Nine Hundred"};

        String[] tens = {"", "Ten", "Twenty", "Thirty", "Forty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety"};

        String[] units = {"", "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine"};

        String[] special = {"", "Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Nineteen"};

        String number;

        if(digits[1] == 1 && digits[2] != 0) //Checking if the tens digit is >10 and <20 or not.
        {
            number = hundreds[digits[0]] + " and " + special[digits[2]];
        }

        else if(digits[1] == 0 && digits[2] == 0) //Checking if the number is an exact hundred or not.
        {
            number = hundreds[digits[0]];
        }
        else
        {
            number = hundreds[digits[0]] + " and " + tens[digits[1]] + " " + units[digits[2]];
        }

        return number;
    }

    public static void main(String[] args)
    {
        Scanner sc = new Scanner(System.in);
        System.out.println("Please enter a greater than 99 and lesser than 1000.");
        int num = sc.nextInt();

        if(num < 100 || num > 999)
        {
            System.out.println("The number entered is out of range. Please try again.");
        }

        else
        {
            int[] digits = getPos(num);
            //display(digits);
            String figure = getWords(digits);
            System.out.println(figure);
        }
        sc.close();
    }
}