public final static int NUM$\_$DIGITS $=4$;

public final static int MAX$\_$VALUE $=9876$;

public final static int MIN$\_$VALUE $=1234$;

public final static int MAX$\_$GUESSES $=10$;

private int bullStored;

private int cowStored;

private NumberPicker randomNumber;

private int secretNumber;

private int availableGuesses;

public CowsAndBulls$($int seed$)\{$

randomNumber $=$ new NumberPicker$($seed$,$ MIN$\_$VALUE, MAX$\_$VALUE$)$;

secretNumber $=$ randomNumber.nextInt$()$;

availableGuesses $=$ MAX$\_$GUESSES;

NumberPicker numbers$=0$;

for$($num:numbers$)\{$

if$($num$<=4$;num$++)\{$

num

$\}$

public int guessesRemaining$()\{$

return availableGuesses;

$\}$

public Result guess$($int guessNumber$)\{$

int bulls $=$NumberUtils.countMatches$($secretNumber$,$ guessNumber$)$;

bullStored $=$ bulls;

int cows $=$NumberUtils.countIntersect$($secretNumber$,$ guessNumber$)-$ bulls;

cowStored $=$ cows;

availableGuesses$--$;

return $($new Result$($cows$,$ bulls$))$;

$\}$

public int giveUp$()\{$

return secretNumber;

$\}$

public boolean gameOver$()\{$

return availableGuesses $==0||$ bullStored $==4$;

$\}$

$\}$