passing value from jcombobox to other classes?

Hi

I have an Jcombobox with an ActionListener set up in a class called
"boxSelected", so that when the user clicks on the choice they're
after the result is sent to a jtext area.

  public class boxlistener implements ActionListener {

        public void actionPerformed(ActionEvent e) {
              if(e.getSource()==queryBox){
                                int selectedIndex =
queryBox.getSelectedIndex();
                                String boxSelected =
queryBox.getSelectedItem().toString();
                                System.out.println("Selected:
"+boxSelected);

              String newline = "\n";

            textArea.append(boxSelected + newline);

             }

        }

   };

The class with the ActionListener, boxlistener, is actually nested
within another class, one called Editor.

My question is, can I pass this new string value, boxSelected, for use
in another class? I'm trying to create a new .java file with a
queryBuilder class and pass this string value for use with that class
there, so I can parse it into some queries.

I am still pretty new. Can anyone show me how to do this, or show me
what code I need? Any help would be really appreciated.

Regards,

John