Please Help me with my Custom Event

Question

I am new in java, please help me about my custom event
I have a simple source code about custom event but it doesn't work like I want. This code generate result :
start
end
but I want result :
start
my custom event (from aaa method)
end
Thank you
package TestBean;
class MyEvent extends java.util.EventObject {
public MyEvent(Object source) {
super(source);
interface MyEventListener extends java.util.EventListener {
public void myEventOccurred(MyEvent evt);
class MyClass {
protected javax.swing.event.EventListenerList listenerList =
new javax.swing.event.EventListenerList();
public void addMyEventListener(MyEventListener listener) {
listenerList.add(MyEventListener.class, listener);
public void removeMyEventListener(MyEventListener listener) {
listenerList.remove(MyEventListener.class, listener);
protected void fireMyEvent(MyEvent evt) {
Object[] listeners = listenerList.getListenerList();
for (int i=0; i<listeners.length; i+=2) {
if (listeners==MyEventListener.class) {
((MyEventListener)listeners[i+1]).myEventOccurred(evt);
public class BeanFrame extends javax.swing.JFrame {
public BeanFrame() {
initComponents();
MyClass c = new MyClass();
System.out.println("start");
c.addMyEventListener(new MyEventListener()
public void myEventOccurred(MyEvent evt)
aaa(evt);
System.out.println("end");
private void aaa(MyEvent evt) {                    
System.out.println("my custom event");
// <editor-fold defaultstate="collapsed" desc=" Generated Code ">
private void initComponents() {
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().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)
pack();
}// </editor-fold>
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new BeanFrame().setVisible(true);

Answer 1

package TestBean;
class MyEvent extends java.util.EventObject {
    public MyEvent(Object source) {
           super(source);
interface MyEventListener extends java.util.EventListener {
    public void myEventOccurred(MyEvent evt);
class MyClass {
    protected javax.swing.event.EventListenerList listenerList =
    new javax.swing.event.EventListenerList();
    public void addMyEventListener(MyEventListener listener) {
          listenerList.add(MyEventListener.class, listener);
    public void removeMyEventListener(MyEventListener listener) {
          listenerList.remove(MyEventListener.class, listener);
    protected void fireMyEvent(MyEvent evt) {
         Object[] listeners = listenerList.getListenerList();
         for (int i=0; i<listeners.length; i+=2) {
                if (listeners==MyEventListener.class) {
                      ((MyEventListener)listeners[i+1]).myEventOccurred(evt);
public class BeanFrame extends javax.swing.JFrame {
      public BeanFrame() {
            initComponents();
            MyClass c = new MyClass();
            System.out.println("start");
            c.addMyEventListener(new MyEventListener(){
                              public void myEventOccurred(MyEvent evt){
                                          aaa(evt);
            System.out.println("end");
      private void aaa(MyEvent evt) {
            System.out.println("my custom event");
     // ><editor-fold defaultstate="collapsed" desc=" Generated Code ">
     private void initComponents() {
           setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
       javax.swing.GroupLayout layout = new 
       javax.swing.GroupLayout(getContentPane());
       getContentPane().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)
      pack();
}// </editor-fold>
public static void main(String args[]) {
         java.awt.EventQueue.invokeLater(new Runnable() {
         public void run() {
                  new BeanFrame().setVisible(true);
}just enclosed it with the code tags.