public String getName() {
	return NbBundle.getMessage(MonAction.class, "CTL_MonAction");
}

public void performAction() {
    String msg = "Aimez-vous Netbeans ?";
    NotifyDescriptor d = new NotifyDescriptor.Confirmation(msg, NotifyDescriptor.INFORMATION_MESSAGE,NotifyDescriptor.YES_NO_CANCEL_OPTION);
    Object o = DialogDisplayer.getDefault().notify(d);
    
    if(o==NotifyDescriptor.YES_OPTION)
    	DialogDisplayer.getDefault().notify(new NotifyDescriptor.Message("Vous aimez Netbeans !!"));
    
    if(o==NotifyDescriptor.NO_OPTION)
        DialogDisplayer.getDefault().notify(new NotifyDescriptor.Message("Vous aimez pas Netbeans !!?"));
    
    if(o==NotifyDescriptor.CANCEL_OPTION)
        DialogDisplayer.getDefault().notify(new NotifyDescriptor.Message("Vous n'avez pas donné d'avis !!"));
}

<folder name="Window">
            <file name="org-yourorghere-moduledessai-monwizard-MonWizardWizardAction.instance"/>
 </folder>

<folder name="Window">
	<file name="org-yourorghere-moduledessai-monwizard-MonWizardWizardAction.shadow">
	        <attr name="originalFile" stringvalue="Actions/Window/org-yourorghere-moduledessai-monwizard-MonWizardWizardAction.instance"/>
	    </file>
	    <attr name="org-yourorghere-moduledessai-monwizard-MonWizardWizardAction.shadow/org-yourorghere-moduledessai-monwizard-separatorAfter.instance" boolvalue="true"/>
	    <file name="org-yourorghere-moduledessai-monwizard-separatorAfter.instance">
	        <attr name="instanceClass" stringvalue="javax.swing.JSeparator"/>
	    </file>
	    <attr name="org-yourorghere-moduledessai-monwizard-separatorAfter.instance/org-netbeans-modules-project-ui-logical-tab-action.shadow" boolvalue="true"/>
</folder>

public String getName() {
    return "Start Sample Wizard";
}

public String getName() {
    return "Démarrer mon Wizard";
}

wizardDescriptor.setTitle("Your wizard dialog title here");

setTitle("Premier Wizard");

public String getName() {
	return "Saisie du nom";
}

public JTextField getNomTxt() {
	return nomTxt;
}

public String getName() {
	return "Step #2";
}

public String getName() {
	return "Question à propos du tuto";
}

public void readSettings(Object settings) {
    }
    
public void storeSettings(Object settings) {
    ((WizardDescriptor)settings).putProperty("Le nom",component.getNomTxt().getText());
}

public class MonWizardWizardPanel2 implements WizardDescriptor.Panel {
    
    /**
     * The visual component that displays this panel. If you need to access the
     * component from this class, just use getComponent().
     */
    private MonWizardVisualPanel2 component;
    
    // Get the visual component for the panel. In this template, the component
    // is kept separate. This can be more efficient: if the wizard is created
    // but never displayed, or not all panels are displayed, it is better to
    // create only those which really need to be visible.
    public Component getComponent() {
        if (component == null) {
            component = new MonWizardVisualPanel2();
        }
        return component;
    }
    
    public HelpCtx getHelp() {
        // Show no Help button for this panel:
        return HelpCtx.DEFAULT_HELP;
        // If you have context help:
        // return new HelpCtx(SampleWizardPanel1.class);
    }
    
    public boolean isValid() {
        // If it is always OK to press Next or Finish, then:
        return true;
        // If it depends on some condition (form filled out...), then:
        // return someCondition();
        // and when this condition changes (last form field filled in...) then:
        // fireChangeEvent();
        // and uncomment the complicated stuff below.
    }
    
    public final void addChangeListener(ChangeListener l) {}
    public final void removeChangeListener(ChangeListener l) {}
    /*
    private final Set<ChangeListener> listeners = new HashSet<ChangeListener>(1);
    public final void addChangeListener(ChangeListener l) {
        synchronized (listeners) {
            listeners.add(l);
        }
    }
    public final void removeChangeListener(ChangeListener l) {
        synchronized (listeners) {
            listeners.remove(l);
        }
    }
    protected final void fireChangeEvent() {
        Iterator<ChangeListener> it;
        synchronized (listeners) {
            it = new HashSet<ChangeListener>(listeners).iterator();
        }
        ChangeEvent ev = new ChangeEvent(this);
        while (it.hasNext()) {
            it.next().stateChanged(ev);
        }
    }
     */
    
    // You can use a settings object to keep track of state. Normally the
    // settings object will be the WizardDescriptor, so you can use
    // WizardDescriptor.getProperty & putProperty to store information entered
    // by the user.
    public void readSettings(Object settings) {
        //récupération du nom de l'utilisateur
        component.getNomLbl().setText("Votre nom est : "+(String) ((WizardDescriptor)settings).getProperty("Le nom"));
    }
    public void storeSettings(Object settings) {
        Boolean reponse = new Boolean(component.getOuiRdo().getModel().isSelected());
        ((WizardDescriptor)settings).putProperty("Reponse",reponse);
    }
    
}

if (!cancelled) {
    boolean reponse = ((Boolean)wizardDescriptor.getProperty("Reponse")).booleanValue();
    String msg = "Votre nom est : "+(String)wizardDescriptor.getProperty("Le nom")+" et votre réponse fut : "+
            (reponse?"Oui":"non");
    NotifyDescriptor d = new NotifyDescriptor.Message(msg);
    DialogDisplayer.getDefault().notify(d);
}

public class MonWizardWizardPanel1 implements WizardDescriptor.Panel, DocumentListener {
    
    private MonWizardVisualPanel1 component;
    //la variable qui décide de la validité de Panel
    private boolean isValid;
    

    public Component getComponent() {
        if (component == null) {
            component = new MonWizardVisualPanel1();
            //grâce à cette ligne on pourra écouter les changements sur le JTextField!
            component.getNomTxt().getDocument().addDocumentListener(this);
        }
        return component;
    }
    
    public HelpCtx getHelp() {
        // Show no Help button for this panel:
        return HelpCtx.DEFAULT_HELP;
        // If you have context help:
        // return new HelpCtx(SampleWizardPanel1.class);
    }
    
    public boolean isValid() {
        // on va enlever ce revoie car la validité n'est pas toujours vérifiée
        //return true;
        return isValid;
        
    }
    //on enlève ces deux déclarations 
    //public final void addChangeListener(ChangeListener l) {}
    //public final void removeChangeListener(ChangeListener l) {}
    
    //voila pourquoi il faut upgrader vers la version1.5
    private final Set<ChangeListener> listeners = new HashSet<ChangeListener>(1);
    public final void addChangeListener(ChangeListener l) {
        synchronized (listeners) {
            listeners.add(l);
        }
    }
    public final void removeChangeListener(ChangeListener l) {
        synchronized (listeners) {
            listeners.remove(l);
        }
    }
    protected final void fireChangeEvent() {
        Iterator<ChangeListener> it;
        synchronized (listeners) {
            it = new HashSet<ChangeListener>(listeners).iterator();
        }
        ChangeEvent ev = new ChangeEvent(this);
        while (it.hasNext()) {
            it.next().stateChanged(ev);
        }
    }
    
    public void readSettings(Object settings) {
    }
    public void storeSettings(Object settings) {
        ((WizardDescriptor)settings).putProperty("Le nom",component.getNomTxt().getText());
    }

    public void insertUpdate(DocumentEvent e) {
        verifierLaValidite();
    }

    public void removeUpdate(DocumentEvent e) {
        verifierLaValidite();
    }

    public void changedUpdate(DocumentEvent e) {
        verifierLaValidite();
    }

    private void verifierLaValidite() {
        String currentText = component.getNomTxt().getText();
        boolean isValidInput = currentText != null && currentText.length() > 0;
        if (isValidInput) {
            setValid(true);
        } else {
            setValid(false);
        }
    }

    private void setValid(boolean b) {
        if (isValid != b) {
            isValid = b;
            //il faut absolument appeler cette méthode pour que le panel rappel
            //la methode isValid
            fireChangeEvent();  
        }
    }
    
}

public class MonWizardWizardPanel2 implements WizardDescriptor.Panel, ItemListener {
    

    private MonWizardVisualPanel2 component;
    private boolean isValid;
    
    public Component getComponent() {
        if (component == null) {
            component = new MonWizardVisualPanel2();
            component.getOuiRdo().addItemListener(this);
            component.getNonRdo().addItemListener(this);
        }
        return component;
    }
    
    public HelpCtx getHelp() {
        // Show no Help button for this panel:
        return HelpCtx.DEFAULT_HELP;
        // If you have context help:
        // return new HelpCtx(SampleWizardPanel1.class);
    }
    
    public boolean isValid() {
        return isValid;
    }
    
    //public final void addChangeListener(ChangeListener l) {}
    //public final void removeChangeListener(ChangeListener l) {}
    
    private final Set<ChangeListener> listeners = new HashSet<ChangeListener>(1);
    public final void addChangeListener(ChangeListener l) {
        synchronized (listeners) {
            listeners.add(l);
        }
    }
    public final void removeChangeListener(ChangeListener l) {
        synchronized (listeners) {
            listeners.remove(l);
        }
    }
    protected final void fireChangeEvent() {
        Iterator<ChangeListener> it;
        synchronized (listeners) {
            it = new HashSet<ChangeListener>(listeners).iterator();
        }
        ChangeEvent ev = new ChangeEvent(this);
        while (it.hasNext()) {
            it.next().stateChanged(ev);
        }
    }
     
    

    public void readSettings(Object settings) {
        component.getNomLbl().setText("Votre nom est : "+(String) ((WizardDescriptor)settings).getProperty("Le nom"));
    }
    public void storeSettings(Object settings) {
        Boolean reponse = new Boolean(component.getOuiRdo().getModel().isSelected());
        ((WizardDescriptor)settings).putProperty("Reponse",reponse);
    }

    public void itemStateChanged(ItemEvent e) {
        verifierLaValidite();
    }


    private void verifierLaValidite() {
        boolean oui = component.getOuiRdo().getModel().isSelected();
        boolean non = component.getNonRdo().getModel().isSelected();
        boolean isValidInput = oui != non;
        if (isValidInput) {
            setValid(true);
        } else {
            setValid(false);
        }
    }

    private void setValid(boolean b) {
        if (isValid != b) {
            isValid = b;
            fireChangeEvent();  
        }
    }

    
}

if (!cancelled) {
    //cette instruction recherche une instance de InputOutput, si elle n'existe pas elle en crée une
    // le false c'est pour que l'affichage dans l'output window se fait dans l'onglet "Mon Wizard"
    //si il existe, si on met true, alors un nouvel onglet apparaitra.
    InputOutput io = IOProvider.getDefault().getIO("Mon Wizard", false);
    io.select();
    boolean reponse = ((Boolean)wizardDescriptor.getProperty("Reponse")).booleanValue();
    String msg = "Votre nom est : "+(String)wizardDescriptor.getProperty("Le nom")+" et votre réponse fut : "+
            (reponse?"Oui":"non");
    OutputWriter w;
    if (reponse)
        //pour un affichage normal
        w = io.getOut();
    else
        //pour afficher une information importante, le texte apparaîtra en rouge
        w = io.getErr();
    w.println(msg);
}