Bets on the roulette wheel.

Bet.java

/**
 * <p>
 * The pockets of the roulette wheel are numbered from 0 to 36.</p>
 * <p>
 * In number ranges from 1 to 10 and 19 to 28, odd numbers are red and even are black.
 * In ranges from 11 to 18 and 29 to 36, odd numbers are black and even are red.</p>
 * <p>
 * There is a green pocket numbered 0 (zero).</p>
 * <p>
 * In American roulette, there is a second green pocket marked 00. But we're playing the French version.</p>
 *
 * @author mrbear
 */
public enum Bet
{
  GREEN, BLACK, RED;

  /**
   * @param bet the betting number
   * @return the kind of colour on that number.
   */
  public static Bet getBet(int bet)
  {
    if (bet == 0)
    {
      return GREEN;
    }
    if ((bet >= 1 && bet <= 10) || (bet >= 19 && bet <= 28))
    {
      if (bet % 2 == 0)
      {
        return BLACK;
      } else
      {
        return RED;
      }
    }
    if (bet % 2 == 0)
    {
      return RED;
    }
    return BLACK;
  }
}