InnerClass Actionlistener problem

Question

hello,
i am stuck on this piece of code and i think somebody here will be able to help me out :).
i have these classes.
ButtonPanel, Test.
in the buttonpanel i have a few buttons, but the actionlistener is an innerClass in Test.
when i want to add one of my actionlisteners in my ButtonPanel class the compiler cannot resolve symbol.
this is a snippet of code:
the buttons in buttonpanel class:
btnStart = new JButton("Start");
btnStart.addActionListener(new startActionListener());
btnStop = new JButton("Stop");
btnStop.addActionListener(new stopActionListener());
btnTest = new JButton("Test");
btnTest.addActionListener(new testActionListener());
The actionlisteners in Test class:
public class startActionListener implements ActionListener{
          public void actionPerformed(ActionEvent e){
               java.awt.Toolkit.getDefaultToolkit().beep();//werkt niet
     public class stopActionListener implements ActionListener{
          public void actionPerformed(ActionEvent e){
               java.awt.Toolkit.getDefaultToolkit().beep();//werkt niet
     public class testActionListener implements ActionListener{
          public void actionPerformed(ActionEvent e){
               java.awt.Toolkit.getDefaultToolkit().beep();//werkt niet
so basically its just how do use actionlisteners in the class that extends from the JFrame, in stead of in de ButtonPanel class where the buttons are?

Answer 1

There are several options.
If the classes don't at all refer to the class their nested in (as your examples seem to be), then just make them top-level, and refer to them anywhere you want.
Or you could create anonymous inner classes, with identical functonality, in your ButtonPanel.
Or you could add the listeners in a different place (say in a method of Test).
The way you should go, depends on the details of the implementation.
When you post code, please wrap it in [code][/code] tags.