Voila le code
 
Frame.java
 
"import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
 
public class Frame extends JFrame {
  private JPanel contentPane;
  private JPanel jPanel1 = new JPanel();
  private JLabel jLabel1 = new JLabel();
  private JPanel jPanel2 = new JPanel();
  private JButton jButton1 = new JButton();
  private JButton jButton2 = new JButton();
  private JPanel jPanel3 = new JPanel();
  private JButton jButton3 = new JButton();
  private JPanel jPanel4 = new JPanel();
  private JButton jButton4 = new JButton();
  private JButton jButton5 = new JButton();
  private JButton jButton6 = new JButton();
  private JPanel jPanel5 = new JPanel();
  private JButton jButton7 = new JButton();
  private GridBagLayout gridBagLayout1 = new GridBagLayout();
  private GridBagLayout gridBagLayout2 = new GridBagLayout();
  private GridBagLayout gridBagLayout3 = new GridBagLayout();
  private GridBagLayout gridBagLayout4 = new GridBagLayout();
  private GridBagLayout gridBagLayout5 = new GridBagLayout();
 
  public Frame() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception  {
    contentPane = (JPanel) this.getContentPane();
    this.setSize(new Dimension(553, 435));
    this.setTitle("GESTION" );
    jPanel1.setLayout(gridBagLayout5);
    jLabel1.setFont(new java.awt.Font("Dialog", 1, 14));
    jLabel1.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel1.setText("Bienvenue sur GESTION" );
    jPanel2.setLayout(gridBagLayout1);
    jPanel2.setFont(new java.awt.Font("Dialog", 1, 14));
    jPanel2.setBorder(BorderFactory.createTitledBorder(BorderFactory.createLineBorder(Color.blue), "x1" ));
    jPanel3.setBorder(BorderFactory.createTitledBorder(BorderFactory.createLineBorder(Color.blue), "x2" ));
    jPanel3.setLayout(gridBagLayout4);
    jPanel4.setBorder(BorderFactory.createTitledBorder(BorderFactory.createLineBorder(Color.blue), "x3" ));
    jPanel5.setBorder(BorderFactory.createTitledBorder(BorderFactory.createLineBorder(Color.red), "x4" ));
    jPanel5.setLayout(gridBagLayout3);
    jPanel4.setLayout(gridBagLayout2);
    jButton1.setText("xxxx" );
    jButton2.setText("xxxxx" );
    jButton3.setText("xxxx" );
    jButton4.setText("xxxxx" );
    jButton5.setText("xxxx" );
    jButton6.setText("xxxxx" );
    jButton7.setText("xxxx" );
    jPanel1.add(jPanel2,  new GridBagConstraints(0, 1, 1, 1, 1.0, 1.0
            ,GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(18, 35, 26, 0), 0, 0));
    jPanel2.add(jButton1,  new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(18, 23, 0, 24), 33, -2));
    jPanel2.add(jButton2,  new GridBagConstraints(0, 1, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(22, 23, 42, 24), 35, -2));
    jPanel1.add(jPanel3,  new GridBagConstraints(0, 2, 1, 1, 1.0, 1.0
            ,GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(16, 35, 82, 0), 0, 0));
    jPanel3.add(jButton3,  new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(5, 54, 8, 54), 0, 0));
    jPanel1.add(jPanel4,  new GridBagConstraints(1, 1, 1, 1, 1.0, 1.0
            ,GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(18, 53, 0, 26), 0, 0));
    jPanel4.add(jButton5,  new GridBagConstraints(0, 1, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(22, 37, 0, 38), 32, 0));
    jPanel4.add(jButton4,  new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(7, 37, 0, 38), 24, 0));
    jPanel4.add(jButton6,  new GridBagConstraints(0, 2, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(22, 37, 26, 38), 10, 0));
    jPanel1.add(jPanel5,  new GridBagConstraints(1, 2, 1, 1, 1.0, 1.0
            ,GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(16, 53, 82, 26), 0, 0));
    jPanel5.add(jButton7,  new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(5, 39, 10, 30), 18, -2));
    jPanel1.add(jLabel1, new GridBagConstraints(0, 0, 2, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(18, 95, 0, 76), 208, 31));
    contentPane.add(jPanel1, BorderLayout.CENTER);
  }
  //Overridden so we can exit when window is closed
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }
}
 
Et Application.java
 
"import javax.swing.UIManager;
import java.awt.*;
 
public class Application {
  private boolean packFrame = false;
 
  public Application() {
    Frame1 frame = new Frame1();
    if (packFrame) {
      frame.pack();
    }
    else {
      frame.validate();
    }
    Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
    Dimension frameSize = frame.getSize();
    if (frameSize.height > screenSize.height) {
      frameSize.height = screenSize.height;
    }
    if (frameSize.width > screenSize.width) {
      frameSize.width = screenSize.width;
    }
    frame.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2);
    frame.setVisible(true);
  }
  public static void main(String[] args) {
    try {
      UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    }
    catch(Exception e) {
      e.printStackTrace();
    }
    new Application();
  }
}"
 
 
J'ai JDK 1.4.1 ...
Je vois pas trop d'où ça peut venir ...
Au fait g laisser tomber JBuilder car importer des librairies de 30meg... ça le fait pas    

C'est bon juste un probleme de configuration de Runtime de JCreator ...
 
Mais quand j'importerai mes sources sous Linux, devrai-je faire une manip pour configurer ce Runtime pour lancer mon application ? Sous Unix on se casse moins la tête ?
 
 
@+
Shogun (ex-supporter de JBuil....)

Derniere question ....:ange:  
 
ça sert a quoi le runtime ???