1. It is almost worst code indentation I have seen. You really need to indent your code as nobody else apart from me probably will ever look at it. So fix code indentation and re-post your code.
2. When you get an error, it is useful to tell - what kind of error you're getting? Copy/Paste exactly as the error appears in your NetBeans IDE environment.
3. You said you're getting errors in "createBoard() and winOrTie()", but non of those mentioned methods implementations you showed us. So please do so.
4. Nearly got confused about lines 5 and 6, but it is again down to problem No. 1.