getWordSoFar:
Given two parallel Arraylists of the same size, one of letters and one of Booleans, this method will return a String that for each position has a corresponding letter for letters if there is a true in the correct Arraylist or a "?" is there is a false in the position of correct You will need to concatenate/build the String via a loop. example:

        String res = "";
        
        for(int i=0; i<5; ++i){
            res += "2";
        }