Unable to view nodes tat are added dynamically in Jtree

Question

i'm very much new in swings. please take a look at my code and correct me.
i need to add all java, cpp and c files in a project folder to my jtree as nodes. the project folder is selected using jfilechooser. my file nodes are inserted, but they are not showed in the jtree. pls help me.
Message was edited by:
Tammy14

Answer 1

here is the code
public Metrix() {
        initComponents();
        jFileChooser1=new JFileChooser();
        jFileChooser1.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
        root = new DefaultMutableTreeNode("Project");
        java1 = new DefaultMutableTreeNode("Java Files");
        root.add(java1);
        cpp = new DefaultMutableTreeNode("CPP Files");
        root.add(cpp);
        c = new DefaultMutableTreeNode("C Files");
        root.add(c);
        treeModel1 = new DefaultTreeModel(root,true);
        treeModel1.addTreeModelListener(new MyTreeModelListener());
        treeModel1.reload();
        jTree2.setModel(treeModel1);
    public DefaultMutableTreeNode addObject(DefaultMutableTreeNode parent,
                                            Object child,
                                            boolean shouldBeVisible)
        int[] a;
        a = new int[1];
        a[0]=0;
        DefaultMutableTreeNode childNode = new DefaultMutableTreeNode(child);
        System.out.println("node " +parent.getChildCount());
        treeModel1.insertNodeInto(childNode, parent, parent.getChildCount());
       if (shouldBeVisible) {
            System.out.println("show");
            jTree2.scrollPathToVisible(new TreePath(childNode.getPath()));
        //a[0]=java1.getIndex(childNode);
        //System.out.println("child count " +parent.getChildCount());
        treeModel1.nodesWereInserted(parent, a);
        //System.out.println("child index : " +parent.getIndex(childNode));
        //System.out.println("a1 "+a[0]);
        //System.out.println(" "+treeModel1.getChild(parent, parent.getChildCount()-1));
        treeModel1.reload(childNode);   
        return childNode;
  public void display()
         Metrix m = new Metrix();
         for(int y=0;y<=jcount;y++)
             m.addObject(m.java1, javafiles[y], true);
             System.out.println(javafiles[y]);
         for( int y=0;y<=cppcount;y++)
             m.addObject(m.java1, cppfiles[y], true);
             System.out.println(cppfiles[y]);
         for(int y=0;y<=ccount;y++)
           m.addObject(m.java1, javafiles[y], true);
             System.out.println(cfiles[y]);
     }