chessboard problem with JPanel and GridLayout

[Jon_Xel]

Well, mi english is not very well, but I'm gonna try, i'm trying to make a simple videogame using swing, at the beginning when I use a two dimensional array of JPanel placing in a cointainer using GridLayout mi program shows the chessboard correctly , but then when I try to use a class that inherits from JPanel instead of using the original JPanel, the program shows only one square of JPanels superimposed.

This is the original class that not uses extended JPanel:

 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class tablero1 extends JFrame
{
    private Container contenedor;
    private JPanel[][] Cuadro;
    public tablero1()
    {
        contenedor=getContentPane();
        contenedor.setLayout(new GridLayout(8,8));
        setSize(600,600);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        pintarCuadros();
    }
    public void pintarCuadros()
    {
        Cuadro=new JPanel[8][8];
        for(int x=0;x<8;x++)
        {
            for(int y=0;y<8;y++)
            {
                if(x%2==0)
                {
                    if(y%2!=0)
                    {
                    Cuadro[x][y]=new JPanel();
                    Cuadro[x][y].setBackground(Color.BLACK);
                    contenedor.add(Cuadro[x][y]);
 
                    }
                    else
                    {
                    Cuadro[x][y]=new JPanel();
                    Cuadro[x][y].setBackground(Color.WHITE);
                    contenedor.add(Cuadro[x][y]);
 
                    }
 
                }
                else
                {
                    if(y%2==0)
                    {
                    Cuadro[x][y]=new JPanel();
                    Cuadro[x][y].setBackground(Color.BLACK);
                    contenedor.add(Cuadro[x][y]);
 
                    }
                    else
                    {
                    Cuadro[x][y]=new JPanel();
                    Cuadro[x][y].setBackground(Color.WHITE);
                    contenedor.add(Cuadro[x][y]);
 
                    }
                }
            }
        }
    }
}

This is the main class, that uses the class that not use extended JPanel.

 
public class test
{
    public static void main(String[] args)
    {
        tablero1 gui= new tablero1();//U have to change tablero1 by Tablero
        gui.setVisible(true);            //the class that uses extended JPanel
    }                                        
}

This the picture of the original chessboard:


Uploaded with ImageShack.us

This is the other class that extends JPanel

 
import javax.swing.*;
import java.awt.*;
public class cuadro extends JPanel
{
    private int Y;
    private int X;
    boolean ocupado;
    private int pieza;
    public cuadro(int x,int y)
    {
        this.setLayout(null);
        X=x;
        Y=y;
    }
    public int getX()
    {
        return X;
    }
    public int getY()
    {
        return Y;
    }
    public void setX(int x)
    {
        X=x;
    }
    public void setY(int y)
    {
        Y=y;
    }
}

And finally this class Tablero(that uses cuadro)(The problem happens here)

 
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
 
public class Tablero extends JFrame
{
    private Container contenedor;
    private cuadro[][] Cuadro;
    public Tablero()
    {
        this.setLayout(null);
        contenedor=getContentPane();
        contenedor.setLayout(new GridLayout(8,8));
        setSize(600,600);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        pintarCuadros();
    }
    public void pintarCuadros()
    {
        Cuadro=new cuadro[8][8];
        for(int x=0;x<8;x++)
        {
            for(int y=0;y<8;y++)
            {
                if(x%2==0)
                {
                    if(y%2!=0)
                    {
                    Cuadro[x][y]=new cuadro(x,y);
                    Cuadro[x][y].setBackground(Color.BLACK);
                    contenedor.add(Cuadro[x][y]);
 
                    }
                    else
                    {
                    Cuadro[x][y]=new cuadro(x,y);
                    Cuadro[x][y].setBackground(Color.WHITE);
                    contenedor.add(Cuadro[x][y]);
 
                    }
 
                }
                else
                {
                    if(y%2==0)
                    {
                    Cuadro[x][y]=new cuadro(x,y);
                    Cuadro[x][y].setBackground(Color.BLACK);
                    contenedor.add(Cuadro[x][y]);
 
                    }
                    else
                    {
                    Cuadro[x][y]=new cuadro(x,y);
                    Cuadro[x][y].setBackground(Color.WHITE);
                    contenedor.add(Cuadro[x][y]);
 
                    }
                }
            }
        }
    }
}

This is the picture of the problem:



I'll be very pleased for your help.And sorry for my not perfect english.

[camickr]

getX() and getY() are methods of the JComponent class.

I'm sure you don't intend to override these methods so use different method names.

[Jon_Xel]

Oh that was great, i haven`t notice that enormouse mistake, now the program shows the chessboard correctly, thanks...:)o