public void checkForWin(int row, int column) { String message; if (model.isGameOver(row, column)) { if (model.declareWin() == "X") message = "X"; else if (model.declareWin() == "O") message = "O"; else if (model.declareWin() == "TIE") message = "TIE"; else message = ""; if (message.length() > 0) { JOptionPane.showMessageDialog( null, "The Winner is " + message, "Game Over", JOptionPane.INFORMATION_MESSAGE); System.exit(0); } } }