HiddenWord.java

public class HiddenWord
  {
    private String hiddenWord;

    public HiddenWord(String word){
      hiddenWord = word;
    }

    public String getHint(String guess){
      String hint = "";

      for (int i = 0; i < guess.length(); i++){
        String gChar = guess.substring(i, i + 1);
        String hChar = hiddenWord.substring(i, i + 1);

        if (gChar.equals(hChar))
            hint += gChar;

        else if (hiddenWord.indexOf(gChar) >= 0)
          hint += "+";

        else
          hint += "*";
      }
      return hint;
    }

    public static void main(String[] args)
    {
        HiddenWord puzzle = new HiddenWord("HARPS");
        System.out.println(puzzle.getHint("AAAAA")); //should display +A+++
        System.out.println(puzzle.getHint("HELLO")); //should display H****
        System.out.println(puzzle.getHint("HEART")); //should display H*++*
        System.out.println(puzzle.getHint("HARMS")); //should display HAR*S
        System.out.println(puzzle.getHint("HARPS")); //should display HARPS

        HiddenWord puzzle2 = new HiddenWord("JACKS");
        System.out.println(puzzle2.getHint("FARSE")); //should display *A*+*
        System.out.println(puzzle2.getHint("SACKS")); //should display +ACKS
    }
    
  }