Helper.java

import java.security.SecureRandom;

public class Helper
{
  public static int translateABCDToNumber(String coord)
  {
    String[] letters = {"A", "B", "C", "D"};
    String letterToTranslate = coord.substring(0).toLowerCase();
    int xCoord = 0;

    Debug.log("Letter given: " + coord + ", "
        + "letter to translate: " + letterToTranslate);

    for (int i = 0; i < letters.length; i++)
    {
      boolean match = (letterToTranslate.matches(letters[i].toLowerCase()));

      Debug.log("Letter in loop: " + letters[i] + ", "
          + "match?: " + match);

      if (letterToTranslate.matches(letters[i].toLowerCase())) {
        xCoord = i;
      }
    }

    Debug.log("Translated to coordinate: " + xCoord);

    return xCoord;
  }

  public static String translateNumberToABCD(int x, int y)
  {
    String[] letters = {"A", "B", "C", "D"};
    String xCoord = letters[x];
    String yCoord = Integer.toString(y + 1);
    String coord = xCoord + yCoord;

    return coord;
  }

  public static int generateRandomNumber(int max)
  {
    SecureRandom randomGenerator = new SecureRandom();
    int randomNumber;
    randomNumber = randomGenerator.nextInt(max);
    return randomNumber;
  }
}