I have a problem with my repaint in the method move. I dont know what to doo, the code is below

import java.awt.*;
import java.io.*;
import java.text.*;
import java.util.*;
import javax.sound.sampled.*;
import javax.swing.*;
import javax.swing.Timer;
import java.awt.event.*;
import java.lang.*;

public class bbb extends JPanel 
{
  public Stack<Integer> stacks[];
  public JButton auto,jugar,nojugar;
  public JButton ok,ok2;
  public JLabel info=new JLabel("Numero de Discos: ");
  public JLabel instruc=new  JLabel("Presiona la base de las torres para mover las fichas");
  public JLabel instruc2=new JLabel("No puedes poner una pieza grande sobre una pequenia!");
  public JComboBox numeros=new JComboBox();
  public JComboBox velocidad=new JComboBox();

  public boolean seguir=false,parar=false,primera=true;
  public int n1,n2,n3;
  public int click1=0;
  public int opcion=1,tiempo=50;
  public int op=1,continuar=0,cont=0;
  public int piezas=0;
  public int posx,posy;
  public int no;

  public bbb() throws IOException
  {
stacks = new Stack[3];
stacks[0]=new Stack<Integer>();
stacks[1]=new Stack<Integer>();
stacks[2]=new Stack<Integer>();
setPreferredSize(new Dimension(1366,768));
ok=new JButton("OK");
ok.setBounds(new Rectangle(270,50,70,25)); 
ok.addActionListener(new okiz());
ok2=new JButton("OK");
ok2.setBounds(new Rectangle(270,50,70,25)); 
ok2.addActionListener(new vel());
add(ok2);ok2.setVisible(false);
auto=new JButton("Automatico");
auto.setBounds(new Rectangle(50,80,100,25));  
auto.addActionListener(new a()); 
jugar=new JButton("PLAY");
jugar.setBounds(new Rectangle(100,100,70,25)); 
jugar.addActionListener(new play());
nojugar=new JButton("PAUSE");
nojugar.setBounds(new Rectangle(100,150,70,25)); 
nojugar.addActionListener(new stop());
setLayout(null);
info.setBounds(new Rectangle(50,50,170,25)); 
info.setForeground(Color.white); 
instruc.setBounds(new Rectangle(970,50,570,25)); 
instruc.setForeground(Color.white); 
instruc2.setBounds(new Rectangle(970,70,570,25)); 
instruc2.setForeground(Color.white); 
add(instruc);add(instruc2);
add(jugar);add(nojugar);jugar.setVisible(false);nojugar.setVisible(false);
add(info);  info.setVisible(false);
add(ok);    ok.setVisible(false);
add(auto);

numeros.setBounds(new Rectangle(210,50,50,25)); 
numeros.addItem(1);numeros.addItem(2);numeros.addItem(3);numeros.addItem(4);numeros.addItem(5);
numeros.addItem(6);numeros.addItem(7);numeros.addItem(8);numeros.addItem(9);numeros.addItem(10);
add(numeros); numeros.setVisible(false);

velocidad.setBounds(new Rectangle(150,50,100,25));
velocidad.addItem("Lenta");
velocidad.addItem("Intermedia");
velocidad.addItem("Rapida");
add(velocidad);
velocidad.setVisible(false);
  }


  public void Mover(int origen, int destino) { 
for (int i=0;i<3;i++) {  
        System.out.print("stack "+i+": ");  
        for(int n : stacks[i]) System.out.print(n+";");  
        System.out.println(""); 
    }  
    System.out.println("de <"+origen+"> a <"+destino+">");    
    stacks[destino].push(stacks[origen].pop());
    System.out.println("");
    this.validate();
    this.repaint( );
    }

  public void hanoi(int origen, int destino, int cuantas) { 
while (parar)
{}
    if (cuantas <= 1) Mover(origen,destino);  
    else {   
        hanoi(origen,3 - (origen+destino),cuantas-1);  
        Mover(origen,destino);  
        hanoi(3 - (origen+destino),destino,cuantas-1);  
    }  
    }   

    public void paintComponent(Graphics g) 
{        
 ImageIcon fondo= new ImageIcon("fondo.jpg");
 g.drawImage(fondo.getImage(),0, 0,1366,768,null);

  g.setColor(new Color((int)(Math.random() * 254),
  (int)(Math.random() *255),
  (int)(Math.random() * 255)));
  g.fillRect(0,0,100,100);

        g.setColor(Color.white);
        g.fillRect(150,600,250,25); 
        g.fillRect(550,600,250,25);
        g.fillRect(950,600,250,25);
        g.setColor(Color.red);
        g.fillRect(270,325,10,275); 
        g.fillRect(270+400,325,10,275); 
        g.fillRect(270+800,325,10,275); 

        int x, y,top=0; 
        g.setColor(Color.yellow);

        x=150;y=580;
        for(int ii:stacks[0])
        { g.fillRect(x+((ii*125)/10),y-(((ii)*250)/10),((10-ii)*250)/10,20);}

        x=550;y=580;
        for(int ii:stacks[1])
          {g.fillRect(x+((ii*125)/10),y-(((ii)*250)/10),((10-ii)*250)/10,20);}

        x=950;y=580;
        for(int ii:stacks[2])
        {g.fillRect(x+((ii*125)/10),y-(((ii)*250)/10),((10-ii)*250)/10,20);}

     System.out.println("ENTRO");   

  setOpaque(false);
    }

    private class play implements ActionListener //manual 
{
  public void actionPerformed(ActionEvent algo)
    {   
        parar=false;
        if(primera=true)
        {
          hanoi(0,2,no);
          primera=false;
        }
    }
    }

    private class stop implements ActionListener //manual 
    {
  public void actionPerformed(ActionEvent algo)
    {   
        parar=true;
    }
    }

private class vel implements ActionListener //manual 
{
  public void actionPerformed(ActionEvent algo)
    {   
        if (velocidad.getSelectedItem()=="Lenta")
            {tiempo=150;}
        else
            if (velocidad.getSelectedItem()=="Intermedia")
            {tiempo=75;}
            else
                tiempo=50;
        ok2.setVisible(false);
        jugar.setVisible(true);
        nojugar.setVisible(true);
    }
  }

private class a implements ActionListener //auto 
{
  public void actionPerformed(ActionEvent algo)
    {   
      auto.setVisible(false);
      info.setVisible(true);
      numeros.setVisible(true);
      ok.setVisible(true);
      op=3;
    }
}   

private class okiz implements ActionListener //ok
{
  public void actionPerformed(ActionEvent algo)
    {   
      no=Integer.parseInt(numeros.getSelectedItem().toString());
      piezas=no;
      if (no>0 && no<11)
        {
          info.setVisible(false);
          numeros.setVisible(false);
          ok.setVisible(false);
          for (int i=no;i>0;i--) 
            stacks[0].push(i);
          opcion=2;
          if (op==3)
            {
              info.setText("Velocidad: ");info.setVisible(true);
              velocidad.setVisible(true);
              ok2.setVisible(true);
            }
        }
      else
        {
        }
     repaint();
    }
}   

}

the code of the other class that calls the one up is below:

import java.awt.*;
import java.io.*;
import java.net.URL;
import javax.imageio.*;
import javax.swing.*;
import javax.swing.border.*;
import java.lang.*;
import java.awt.event.*;

public class aaa extends JPanel 
{        
    private ImageIcon Background;
    private JLabel fondo;

    public static void main(String[] args) throws IOException 
    {
        JFrame.setDefaultLookAndFeelDecorated(true);
        final JPanel cp = new JPanel(new BorderLayout());
        JFrame frame = new JFrame ("Torres de Hanoi");

        frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);
        frame.setSize(550,550);
        frame.setVisible(true);

        bbb panel = new bbb();

        frame.getContentPane().add(panel);

        frame.pack();
        frame.setVisible(true);
    }
    }