int pickAWord = myRandom.nextInt(words.size()); return (String) words.get(pickAWord);
if(sortedWords.containsKey(lenght)){ ArrayList thisLenghtwords = (ArrayList)sortedWords.get(lenght); int pickAWord = myRandom.nextInt(thisLenghtwords.size()); return (String) thisLenghtwords.get(pickAWord); }else{ return null; }
    public String getNextWord()    {        int pickAWord = myRandom.nextInt(words.size());        return (String) words.get(pickAWord);    }