Tic Tac Toe Java

ok, i study C++ at school and i happen to have a friend who studies Java in High school. Since java and C++ are similar i guess i can help her a little. The code she gave me looks kind of right, i cant seem to find the problem. Want to see who can help me. Thanks in Advance

import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;

import javax.swing.JPanel;

public class TicTacToe {

private final static int[][] winChances = new int[][] {

{0, 1, 2}, {3, 4, 5}, {6, 7, 8},
{0, 3, 6}, {1, 4, 7}, {2, 5, 8},

{0, 4, 8}, {2, 4, 6}
};

private final JFrame frame = new JFrame("Tic Tac Toe");


private final JButton[] buttons = new JButton[9];

private String turn = "X";


public TicTacToe() {
final JPanel mainPanel = new JPanel(new GridLayout(3, 3));

final ActionListener buttonListener = new ButtonListener();
for (int i = 0; i < 9; i++) {

this.buttons = new JButton();
mainPanel.add(this.buttons);
this.buttons.addActionListener(buttonListener);
}

this.frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.frame.getContentPane().add(mainPanel, BorderLayout.CENTER);
this.frame.setBounds(200, 200, 300, 300);
this.frame.setVisible(true);
}


private void checkEndgame() {
for (final int[] winChance : TicTacToe.winChances) {

if (this.checkVictory(winChance)) {
final String winner = this.turn.equals("X") ? "O" : "X";

JOptionPane.showMessageDialog(this.frame, winner + " won the game!",
"Game Over", JOptionPane.INFORMATION_MESSAGE);
this.reset();

return;
}
}

for (final JButton button : this.buttons) {

if (button.getText().equals("")) {
return;
}
}


JOptionPane.showMessageDialog(this.frame, "This game is a draw.", "Game Over",
JOptionPane.INFORMATION_MESSAGE);
this.reset();

}

private boolean checkVictory(final int[] winChance) {

final String firstButtonText = this.buttons[winChance[0]].getText();

final boolean firstSecondEqual =

firstButtonText.equals(this.buttons[winChance[1]].getText());
final boolean firstThirdEqual =
firstButtonText.equals(this.buttons[winChance[2]].getText());


return (!firstButtonText.equals("")) && firstSecondEqual && firstThirdEqual;
}

private void reset() {

this.turn = "X";
for (int i = 0; i < 9; i++) {
this.buttons.setText("");

this.buttons.setEnabled(true);
}
}

private class ButtonListener implements ActionListener {

public void actionPerformed(final ActionEvent ae) {
final JButton source = (JButton) ae.getSource();

source.setText(TicTacToe.this.turn);
source.setEnabled(false);
if (TicTacToe.this.turn.equals("X")) {

TicTacToe.this.turn = "O";
} else {
TicTacToe.this.turn = "X";

}

TicTacToe.this.checkEndgame();
}
}

public static void main(final String[] argv) {

new TicTacToe();
}
}

 

What happens if you run it? Any runtime errors or is there some errors in the logic?

 

should post up what the error is

use some debugger or IDE and they'll identify which line breaks down =)

 

this.frame.setDefaultCloseOperation(JFrame.EXIT_ON _CLOSE);

There shouldn't be a space between ON _CLOSE

it should be
this.frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Once you fix that error, it will compile and run fine.