i need my code to replace the ? with the letter guessed. The ? needs to be replaced with a for only those to spots. The word in array is parameter.

public static void replace(String[] wordOne, String blanks, char guess)
  {
    int i;
    blanks = wordOne[0];
    for (i = 0; i < wordOne.length; i++)
    {
      for (int j = 0; j < wordOne[0].length(); j++)
      {
        blanks = blanks.replace(blanks.charAt(j), '?');
        if (wordOne[0].charAt(i) == guess)
        {
          blanks = blanks.replace(blanks.charAt(i), guess);
        }
      }
    }
    System.out.println(blanks);
  }
}