Getting multiple errors.

<p>
 import java.io.Console;

public class Prompter {
  private Game mGame;

  public Prompter(Game game) {
     mGame = game;  
  } 

  public void play () {
   while (mGame.getRemainingTries() > 0 && !mGame.isSolved()) {
    displayProgress();
    promptForGuess();      
   }
    if(mGame.isSolved()) {
      System.out.printf("Congratulations you won with %d tried remaining.\n",
                         mGame.getRemainingTries());
    } else {
      System.out.printf("Bummer the word was %s.  :(\n",
                         mGame.getAnswer());
    }
    }
    }




  public boolean promptForGuess() {
   Console console = System.console();
    boolean isHit = false;
    boolean isValidGuess = false;
    while (!isValidGuess) {
     String guessAsString = console.readLine("Enter a letter:  ");  
      try {
       isHit = mGame.applyGuess(guessAsString); 
       isValidGuess = true;
      } catch (IllegalArgumentException iae) {
        console.printf("%s.  Please try again.\n", iae.getMessage()); 
      }
    }
    return isHit;
  }

  public void displayProgress() {
   System.out.printf("You have %d tries left to solve:  %s\n", 
                     mGame.getRemainingTries(),
                     mGame.getCurrentProgress()); 
  } </p>

public class Game{
  public static final int MAX_MISSES = 7;
  private String mAnswer;
  private String mHits;
  private String mMisses;

  public Game(String answer) {
    mAnswer = answer;
    mHits = "";
    mMisses = "";
  }

  private char validateGuess(char letter) {
   if(!Character.isLetter(letter)) {
     throw new IllegalArgumentException("A letter is required");
   }
    letter = Character.toLowerCase(letter);
    if (mMisses.indexOf(letter) >= 0 || mHits.indexOf(letter) >= 0) {
     throw new IllegalArgumentException(letter + " has already been guessed"); 
    }
    return letter;
  }

  public boolean applyGuess(String letters) {
    if (letters.length() == 0) {
     throw new IllegalArgumentException("No letter found"); 
    }
    return applyGuess(letters.charAt(0));
  }

  public boolean applyGuess(char letter) {
    letter = validateGuess(letter);
    boolean isHit = mAnswer.indexOf(letter) >= 0;
    if (isHit) {
      mHits += letter;
    } else {
     mMisses += letter; 
    }
    return isHit;
  }

  public String getCurrentProgress() {
   String progress = "";
    for(char letter: mAnswer.toCharArray()) {
      char display = '-';
      if (mHits.indexOf(letter) >= 0) {
        display = letter;
        }
      progress += display;
    }
      return progress;
  }

  public int getRemainingTries() {
    return MAX_MISSES - mMisses.length();
  }

  public boolean isSolved() {
   return getCurrentProgress().indexOf('-') == -1; 
  } 

  public String getAnswer() {
    return mAnswer;
  }

} </p>