Perdu dans l'affichage de mes images... ca veut ca veut plus...

Rebonsoir,
apres une reponse suite a une question sur l'affichage des images avec
gridbaglayout j'ai fais comme indiqué j'ai tout repris depuis le
debut... a savoir afficher une image avec un borderlayout... aucun
soucis puis avec ce code toujours aucun probleme

import java.awt.*; //Package des composants graphiques
import javax.swing.*; //Package de l'interface graphique SWING




class Moncadre extends JFrame
{
public Moncadre()
{


Container contentPane = getContentPane();
GridBagLayout layout = new GridBagLayout();
contentPane.setLayout(layout);
setTitle("AGIC");
Toolkit kt = Toolkit.getDefaultToolkit();//outils graphique
Dimension p = kt.getScreenSize();
int xx = p.width;
int yy = p.height;
setSize(xx/2,yy/2);
setLocation(xx/4,yy/4);
//setSize(500,500);
Icon image = new ImageIcon("dncr_logo_en.gif");
JLabel label = new JLabel(image);
GridBagConstraints constraints = new GridBagConstraints();
constraints.fill = GridBagConstraints.BOTH;
constraints.anchor = GridBagConstraints.WEST;
constraints.weightx = 0;
constraints.weighty = 0;

add(label,constraints,0,0,2,2);
}
public void add(Component c, GridBagConstraints constraints, int x, int
y, int w, int h)
{
constraints.gridx = x;
constraints.gridy = y;
constraints.gridwidth = w;
constraints.gridheight = h;
getContentPane().add(c, constraints);
}
}

public class Graphique
{
public static void main(String[] args)
{
Moncadre frame1 = new Moncadre();
frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//Pour fermer la
fenetre
frame1.show();//lance la fenetre

}
}

------------------------------------------------------------------------


Dans ce code aucun probleme donc je me dis chouette je vais tester dans
mon code mais la...

voici mon code car il doit bien y avoir quelque chose qui change entre
les 2 mais je vois vraiment pas...



package frames.login;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.*;
import connection.*;
import frames.production.*;



/**
* @author zork
*
* To change the template for this generated type comment go to
* Window - Preferences - Java - Code Generation - Code and Comments
*/

class LoginFrame extends JFrame
{
public static void main(String[] args) {
LoginFrame frame = new LoginFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.show();
}
public LoginFrame()
{
setTitle("PhotoService - Login");
setSize(WIDTH,HEIGHT);
Toolkit kt = Toolkit.getDefaultToolkit();//outils graphique
Dimension p = kt.getScreenSize();
int xx = p.width;
int yy = p.height;
setSize(WIDTH,HEIGHT);
setLocation(xx/4,yy/4);

Container contentPane = getContentPane();
GridBagLayout layout = new GridBagLayout();
contentPane.setLayout(layout);

sessionLabel = new JLabel("Type de session : ");

//Creation et ajout d'un comboBox pour le type de domaine
try{
Connexion_sql myConnexion = new Connexion_sql();
myConnectionSql = myConnexion.connect();
Statement statement = myConnectionSql.createStatement();
String query="SELECT nomDomaine FROM domaine ORDER BY nomDomaine";
ResultSet resultSet = statement.executeQuery(query);
sessionBox = new JComboBox();
while(resultSet.next())
{
sessionBox.addItem( resultSet.getString("nomDomaine"));
}
resultSet.close();
}
catch(Exception ex)
{
}


passwordLabel = new JLabel("Mot de passe :");
passwordPF = new JPasswordField();

okButton = new JButton("OK");
okButton.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
try{
Connexion_sql myConnexion = new Connexion_sql();
myConnectionSql = myConnexion.connect();
Statement statement = myConnectionSql.createStatement();
String query="SELECT pass FROM domaine WHERE pass=
'"+passwordPF.getText()+"' AND
nomDomaine='"+sessionBox.getSelectedItem()+"'";
System.out.println(query);
ResultSet resultSet = statement.executeQuery(query);
String resultatQuery="NULL";
while(resultSet.next())
{
resultatQuery=resultSet.getString("pass");
}
resultSet.close();
if(resultatQuery=="NULL")
{
erreurLogin();
}
else
{
if(sessionBox.getSelectedItem().equals("production"))
{
productionLogin();
}
else if(sessionBox.getSelectedItem().equals("vente"))
{
venteLogin();
}
}
}
catch(Exception ex)
{
}
}

});
cancelButton = new JButton("Annuler");
cancelButton.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
System.exit(0);
}
});

-->> Icon image = new ImageIcon("dncr_logo_en.gif");
->> label = new JLabel(image);
GridBagConstraints constraints = new GridBagConstraints();
constraints.fill = GridBagConstraints.BOTH;
constraints.anchor = GridBagConstraints.WEST;
constraints.weightx = 0;
constraints.weighty = 0;

//add(sessionLabel,constraints,0,0,2,2);

-->> add(label,constraints,0,0,2,2);
/*add(sessionBox,constraints,2,0,2,2);
add(passwordLabel,constraints,0,2,2,2);
constraints.fill = GridBagConstraints.BOTH;
add(passwordPF,constraints,2,2,2,2);
constraints.fill = GridBagConstraints.NONE;
constraints.anchor = GridBagConstraints.CENTER;
add(okButton,constraints,0,4,2,1);
add(cancelButton,constraints,2,4,2,1);*/

}

private JLabel sessionLabel;
private JComboBox sessionBox;
private JLabel passwordLabel;
private JPasswordField passwordPF;
private JButton okButton;
private JButton cancelButton;
--> private JLabel label;

private static Connection myConnectionSql;
private static final int WIDTH =250;
private static final int HEIGHT =175;

public void add(Component c, GridBagConstraints constraints, int x, int
y, int w, int h)
{
constraints.gridx = x;
constraints.gridy = y;
constraints.gridwidth = w;
constraints.gridheight = h;
getContentPane().add(c, constraints);
}

private void erreurLogin()
{
JOptionPane.showMessageDialog(this,"Erreur","Erreur de
login",JOptionPane.WARNING_MESSAGE);
passwordPF.setText("");
passwordPF.requestFocus();

}

private void productionLogin()
{
this.setVisible(false);
ProductionFrame production = new ProductionFrame();
production.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
production.setLocation(450,350);
production.show();
}
private void venteLogin()
{
this.setVisible(false);
}
}









Si quelqu'un peut m'aider vraiment merci