Jugar en LAN con tu propio juego

public class Inicio {
	
	public static void main(String[] args) {
		Tablero t = new Tablero();
	}

}

import java.awt.Font;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;


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

public class Tablero extends JFrame {

	final int nFilasColumnas = 3;
	JButton boton[][];
	ActionListener accion;
	Font f;

	public Tablero() {
		super("Tres en Raya - Grupo 8");
		setSize(500,500);
		setResizable(false);
		f = new Font( Font.MONOSPACED, Font.PLAIN, 100);
		accion=new ActionListener() {
			public void actionPerformed(ActionEvent e){
				System.out.println("Presionaste el botón"+e.getActionCommand());
				Poner((JButton)e.getSource(),"O");
			}
		};
		boton = new JButton[nFilasColumnas][nFilasColumnas];
		setLayout(new GridLayout(nFilasColumnas, nFilasColumnas));
		for(int i=0; i<nFilasColumnas; i++) 
			for(int j=0; j<nFilasColumnas; j++){
				boton[i][j] = new JButton();
				boton[i][j].setActionCommand(i+"-"+j);
				boton[i][j].addActionListener(accion);
				boton[i][j].setFont(f);
				add(boton[i][j]);
			}
		repaint();
		setVisible(true);
	}

	public void Poner(int i,int j,String letra){
		boton[i][j].setText(letra);
		boton[i][j].setEnabled(false);
		repaint();
	}

	public void Poner(JButton j,String letra){
		j.setText(letra);
		j.setEnabled(false);
		j.repaint();
	}

}