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  • Doesn't work. I get a null pointer exception when I call any non-static method of the other class. Sorry. Commented Jun 20, 2016 at 19:57
  • Have you instantiated each GameBoard? Remember, declaring GameBoard[] gameboard = new GameBoard[9]; only creates an array to hold GameBoards, but the array is empty. Commented Jun 20, 2016 at 20:09
  • Thank you! This works flawlessly! Now I can make the game more effective, detect a win, and eventually get a working AI. :):) Commented Jun 20, 2016 at 20:32