import javax.swing.JFrame;
   import java.awt.event.ActionListener;
   import java.awt.event.ActionEvent;
   import java.awt.Font;
   import javax.swing.JButton;
   import java.awt.GridLayout;

   public class AdinTicTacToe extends JFrame implements ActionListener {
private static final long serialVersionUID = 1L;
public static final int WIDTH = 500; //Width of the JFrame
public static final int HEIGHT = 400; //Height of the JFrame

public static void main(String[] args) {
    AdinTicTacToe gui = new AdinTicTacToe(3, 3);
    gui.setVisible(true);
  }
  //Creating a matrix of buttons to make flexible layout
JButton[][] buttons = new JButton[3][3]; {
for(int row=0; row < buttons.length; row++) {
    for( int col=0 ; col < buttons[0].length ; col++ ) {
        JButton cells = new JButton();
        buttons[row][col] = cells;
        add(cells);
        cells.addActionListener(this);
    }
}
   }
  //A constructor to set initial values
   public AdinTicTacToe(int rows, int columns ) {
    super();
    setSize(WIDTH, HEIGHT);
    setTitle("Tic Tac Toe");
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    //Setting a layout
    setLayout(new GridLayout(rows, columns ));
    }

    //Handling button clicks
    boolean check; //Variable to determine the current state of a button
@Override
public void actionPerformed(ActionEvent e) {
    //Using getSource method to avoid multiple if statements and make it efficient
    JButton myButton = (JButton)e.getSource();
    if (!check)
        myButton.setText("X");; //Set X to the clicked cell
        if (check)
        myButton.setText("O"); //Set O to the clicked cell
    check = !check; //Reverting the button state
    myButton.setFont(new Font("Arial", Font.BOLD, 60)); //Set font of X and O
    myButton.setEnabled(false); //Disable button after it gets clicked

}
   }