nybegynder compiler error

compiler error: cannot resolve symbol "shadowWord"

Hvad mangler for at variablerne i metoden InitGame kan bruges i begge metoder??

******* Hangman.java **********
public class Hangman
{
  public void InitGame(String enteredWord)
  {
      // Declare variables
      int mistakes = 0;
      final int mistakeLimit = 8;
      String gameMessage = "";
      String hiddenWord = enteredWord;
      String shadowWord = "";
      String availableLetters = "abcdefghijklmnopqrstuvwxyz";
      String wrongLetters = "";

      // Fill shadowWord with asterisk
      for (int i=0; i < hiddenWord.length(); i++)
      {
        shadowWord = shadowWord + "*";
      }
  }
 
  public void UpdateGame(char letter)
  {
      if (hiddenWord.indexOf(letter) > -1)
      { 
        System.out.println("shadowWord before: " + shadowWord);
        shadowWord = shadowWord.substring(0,hiddenWord.indexOf(letter) + letter + shadowWord.substring(hiddenWord.indexOf(letter)+1));
        System.out.println("shadowWord after: " + shadowWord);
      }
  }
 
}

****** HangmanTest.java ********************
import java.io.*;
public class HangmanTest
{
  public static void main(String[] args) throws IOException
  {
      BufferedReader keyboard = new
      BufferedReader(new InputStreamReader(System.in));

      System.out.print("Enter word to be guessed: ");
      String enteredWord = keyboard.readLine();

      Hangman playGame = new Hangman();
      playGame.InitGame(enteredWord);

      System.out.print("Enter letter: ");
      String enteredLetter = keyboard.readLine());

      playgame.UpdateGame(enteredLetter);           
  }
}