How to add a TreeNode using a path?

Question

When I doing my project, I get stuck on a portion of my GUI Coding.
My code provide a path such as
/Home/fsloke
/Home/fsloke/directory1
/Home/WorkHard
/Home/WorkSmart
/Home/WorkSmart/Dreamincode
Currently my tree constructed as below:
Home
+ fsloke
---+directory1
+ WorkHard
+ WorkSmart
---+ Dreamincode
May I know how can I add a childNode called "TryHard" under WorkHard?
Generally the path give is "/Home/WorkHard/TryHard".
Don't worried I will split it to
TreeNode Head ="Home"
parentPath ="/Home/WorkHard";
childNode name = "TryHard";
Any clue?
I search in net. All give me the solution when the user click on the tree Node. Then the code use , getSelectedPath() function.
In my case my user not click on the Tree...
Any advise and direction...
Thanx...
I like the DynamicTreeDemo coding from this website http://java.sun.com/docs/books/tutorial/uiswing/components/tree.html

Answer 1

you can use this method:
addChildTo("WorkHard","TryHard");
public void addChildTo(String parentObject, String child){
         TreePath parentPath = getTreePath(parentObject);
         if(parentPath != null){
             DefaultMutableTreeNode parent = (DefaultMutableTreeNode)parentPath.getLastPathComponent();
             treeModel.insertNodeInto(new DefaultMutableTreeNode(child), parent, parent.getChildCount());
private TreePath getTreePath(String userObject) {
         java.util.Enumeration nodes = ( (DefaultMutableTreeNode) treeModel.getRoot()).
         preorderEnumeration();
         while (nodes.hasMoreElements()) {
              DefaultMutableTreeNode node = (DefaultMutableTreeNode) nodes.nextElement();
              if (node.getUserObject().equals(userObject)){
                   return new TreePath(node.getPath());
         return null;
}if you are using new DefaultMutableTreeNode("WorkHard"); , then the object name(WorkHard) should be unique , otherwise create node with your own object. Or alter the method what ever you need..
edit:
creation of jtree like
DefaultMutableTreeNode top =
            new DefaultMutableTreeNode("The Java Series");
        createNodes(top);
        treeModel = new DefaultTreeModel(top);
        tree = new JTree(treeModel);
        tree.getSelectionModel().setSelectionMode
                (TreeSelectionModel.SINGLE_TREE_SELECTION);ref:http://java.sun.com/docs/books/tutorial/uiswing/examples/components/TreeDemoProject/src/components/TreeDemo.java
Edited by: david_david on Mar 19, 2008 10:15 AM