public boolean checkForVerticalStrike(String input) {
        for (int i = 0; i < boardSize; i++) {
            int count=0;
            for (int j = 0; j < boardSize; j++,count++) {
                if (boardArray[j][i].equalsIgnoreCase(input)) {
                    continue;
                }
                break;
            }
            if(count==boardSize){
                setWinner(input);
                return true;
            }
        }
        return false;
    }