How to go to different screen by Double Clicking a Tree Node

Question

Hi guys,
I have a tool where i have a top panel and a bottompanel. On the top panel, i add Tab buttons so that if anyone is clicked, it will repaint the bottom panel with corresponding Tab screen(New screen will come with the top panel remaining same). There are Actions, Conditions,Trees tabs on the main panel. There is also a Home Tab on the main panel which when clicked brings up a tree structure on the left hand side of the bottom panel which has some parent and child nodes depending on whether they are files or directories. There are folders(parent nodes) with names Trees & Conditions also related to the Tabs on the main panel under which i have some file names. I am including the method which creates the nodes. The problem is that when i double click any file(not a directory), it should take me to the screen which is actually populated when i select the Trees/Conditions tab and select the corresponding file name from the drop down provided in that screen and click a view button. So, it is something like adding an actionListener or SelectionListener. But, i am unable to do it. Can anyone suggest me how to do it?
The class involving the following looks something like this.
public class MainHomePanel extends AbstractDtPanel {And the AbstractDtPanel looks something like this.
public abstract class AbstractDtPanel extends JPanelFinally, the method to create the Nodes is given below
    private void createNodes(DefaultMutableTreeNode top) {
        DefaultMutableTreeNode parentFolder = null;
        DefaultMutableTreeNode innerFolder = null;
        DefaultMutableTreeNode fileNames = null;
        ArrayList folderName = new ArrayList();       
        ArrayList innerFolderNames = new ArrayList();
        ArrayList fileNameArray = new ArrayList();
        CommonUtil cu = new CommonUtil();
        folderName =cu.getFolderNames(sessionData.getSysPath());
        if(folderName != null && folderName.size() > 0) {
             for(int i =0; i<folderName.size(); i++) {
                 parentFolder = new DefaultMutableTreeNode((String)folderName.get(i));
                 top.add(parentFolder);
                 innerFolderNames =  new ArrayList();
                 innerFolderNames = cu.getInnerFolderNames(sessionData.getSysPath(), (String)folderName.get(i));
                 for(int k=0; k<innerFolderNames.size();k++) {
                     innerFolder = new DefaultMutableTreeNode((String)innerFolderNames.get(k));
                     parentFolder.add(innerFolder);
                     fileNameArray = new ArrayList();
                     fileNameArray = cu.getFileNames(sessionData.getSysPath(), (String)folderName.get(i),(String)innerFolderNames.get(k));
                     for(int j=0; j<fileNameArray.size(); j++) {
                         fileNames = new DefaultMutableTreeNode(fileNameArray.get(j));
                         innerFolder.add(fileNames);
    }

Answer 1

Sorry, a small mistake. The "createNodes" method is in the "MainHomePanel" class.