Rysowanie po JPanel przed jego pojawieniem się

Chce narysowac obrazki przed pojawieniem sie panelu, tzn. jak juz uruchomie projekt, otworzy sie panel, to obrazki moje maja juz na nim byc. Mam taki panel:

to ponizej nie dziala:( :

public class klasa extends javax.swing.JPanel {

    Image obrazki[];
    
    /** Creates new form klasa*/
    public klasa() {
        
        MediaTracker mt = new MediaTracker(this);
        Toolkit toolkit = Toolkit.getDefaultToolkit();
        
        obrazki = new Image[3];
        for(int i=0; i<3; i++)
        {
            obrazki[i] = toolkit.getImage("obrazek.png");
            mt.addImage(obrazki[i], i);
        }
        
        try {
            mt.waitForID(0);
            mt.waitForID(1);
            mt.waitForID(2);
        } catch (java.lang.InterruptedException e) {System.out.println("Nie można załadować obrazka/ów.");}
        
        initComponents();
        
    }
    
    @Override
    public void paintComponent(Graphics g)
    {
        super.paintComponent(g);
        g.drawImage(obrazki[0], 10, 20, this);
        g.drawImage(obrazki[1], 101, 202, this);
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 400, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 300, Short.MAX_VALUE)
        );
    }// </editor-fold>                        
    // Variables declaration - do not modify                     
    // End of variables declaration                   
}