[JAVA]: Elementi del JFrame non visibili

[-Bella Jack-]

questo è il codice del mio programma:

public static void main(String[] args){
Mastermind frame = new Mastermind();
frame.setVisible(true);

}
// Componenti del main
public Mastermind(){
super();
Grafica();
iniziotime();
}

public void Grafica(){
try {
setDefaultCloseOperation(WindowConstants.DISPOSE_O N_CLOSE);
BoxLayout thisLayout = new BoxLayout(getContentPane(),javax.swing.BoxLayout.X _AXIS);
getContentPane().setLayout(thisLayout);
this.setTitle("Progetto di Programmazione Internet A.A. 2005/2006 - Master Mind");
getContentPane().setBackground(new java.awt.Color(51,102,204));
{
PannelloPrincipale = new JPanel();
BorderLayout PannelloPrincipaleLayout = new BorderLayout();
PannelloPrincipale.setLayout(PannelloPrincipaleLay out);
getContentPane().add(PannelloPrincipale);

{
PulsantiGioco = new JPanel();
PannelloPrincipale.add(PulsantiGioco, BorderLayout.SOUTH);
GridLayout PulsantiGiocoLayout = new GridLayout(1,3);
PulsantiGiocoLayout.setVgap(20);
PulsantiGioco.setLayout(PulsantiGiocoLayout);
PulsantiGioco.setPreferredSize(new java.awt.Dimension(300, 100));
PulsantiGioco.setBackground(new java.awt.Color(51,102,204));
{
newgame_button = new JButton ("Nuova Partita");
newgame_button.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent evt) {
System.out.println("Nuova Partita");
}
});
}

{
spia_button = new JButton ("Spia");
spia_button.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent evt) {
System.out.println("Nuova Partita");
}
});
}

{
rank_button = new JButton ("Classifica");
rank_button.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent evt) {
System.out.println("Nuova Partita");
}
});
}
}

{
Tavolozza = new JPanel();
PannelloPrincipale.add(Tavolozza, BorderLayout.WEST);
Tavolozza.setLayout(new GridLayout (4 , 1));
Tavolozza.setPreferredSize(new Dimension (100, 45));
Tavolozza.setBackground(new java.awt.Color(51,102,204));
{
buttonPanel1 = new JPanel();
buttonPanel1.setPreferredSize (new Dimension(100, 45));
buttonPanel1.setBackground(new java.awt.Color(51,102,204));

{
blulabel = new JLabel (blue);
blulabel.addMouseListener(new MouseAdapter(){
public void mouseClicked(MouseEvent evt){
colorlabel.setIcon(new ImageIcon(getClass().getClassLoader().getResource( "blu.gif")));
colorselect = "blu.gif";
}
});
}
{
blacklabel = new JLabel (black);
blacklabel.addMouseListener(new MouseAdapter(){
public void mouseClicked(MouseEvent evt){
colorlabel.setIcon(new ImageIcon(getClass().getClassLoader().getResource( "black.gif")));
colorselect = "black.gif";
}
});
}
}

{
buttonPanel2 = new JPanel();
buttonPanel2.setPreferredSize (new Dimension(100, 45));
buttonPanel2.setBackground(new java.awt.Color(51,102,204));

{
yellowlabel = new JLabel (yellow);
yellowlabel.addMouseListener(new MouseAdapter(){
public void mouseClicked(MouseEvent evt){
colorlabel.setIcon(new ImageIcon(getClass().getClassLoader().getResource( "yellow.gif")));
colorselect = "yellow.gif";
}
});
}

{
redlabel = new JLabel (red);
redlabel.addMouseListener(new MouseAdapter(){
public void mouseClicked(MouseEvent evt){
colorlabel.setIcon(new ImageIcon(getClass().getClassLoader().getResource( "red.gif")));
colorselect = "red.gif";
}
});
}
}

{
buttonPanel3 = new JPanel();
buttonPanel3.setPreferredSize (new Dimension(100, 45));
buttonPanel3.setBackground(new java.awt.Color(51,102,204));

{
greenlabel = new JLabel (green);
greenlabel.addMouseListener(new MouseAdapter(){
public void mouseClicked(MouseEvent evt){
colorlabel.setIcon(new ImageIcon(getClass().getClassLoader().getResource( "green.gif")));
colorselect = "green.gif";
}
});
}

{
orangelabel = new JLabel (orange);
orangelabel.addMouseListener(new MouseAdapter(){
public void mouseClicked(MouseEvent evt){
colorlabel.setIcon(new ImageIcon(getClass().getClassLoader().getResource( "orange.gif")));
colorselect = "orange.gif";
}
});
}
}

{
colorlabel = new JLabel (yellow);
colorlabel.setPreferredSize (new Dimension (100, 45));
}
}


{
Soluzione = new JPanel();
Soluzione.setPreferredSize (new Dimension(200, 50));
PannelloPrincipale.add(Soluzione, BorderLayout.NORTH);

{
s1label = new JLabel (gray);
s1label.setPreferredSize(new Dimension (40, 40));
}
{
s2label = new JLabel (gray);
s2label.setPreferredSize(new Dimension (40, 40));
}
{
s3label = new JLabel (gray);
s3label.setPreferredSize(new Dimension (40, 40));
}
{
s4label = new JLabel (gray);
s4label.setPreferredSize(new Dimension (40, 40));
}
}
}
pack();
this.setSize(600, 600);
} catch (Exception e)
{
e.printStackTrace();
}
}

il risultato è questo.

qualcuno può darmi una mano a risolvere il problema??

[var]

prova a seguire il mio ultimo consiglio in questo thread.

ciao