How to reach at a node of JTree : Urgent

Hay all,
Plz tell me that how to reach at a particular node in a JTree, whose name is known to you.I have used a DefaultTreeModel to create a tree. As
deviceTreeModel=new DefaultTreeModel(rootNode);
tree = new JTree( deviceTreeModel );
Thanks and Regards,
Sharad Agarwal

an inefficient way is to traverse the tree to find the node
DefaultMutableTreeNode root = (DefaultMutableTreeNode) treeModel.getRoot();
public TreeNode getNode(DefaultMutuableTreeNode node, String nodeName){
    if (node.getChildCount() == )
        return null;
     for (Enumeration e = node.childrens() ; e.hasMoreElements() ;) {
         DefaultMutuableTreeNode child = (DefaultMutuanbleTreeNode) e.nextElement();
         if (child.getUserObject.().toString().equals(nodename))
             return child;
         else
             getNode(child, nodeName);
}once you got the node, you can use the
DefaultTreeModel.insertNodeInto(MutableTreeNode newChild, MutableTreeNode parent, int index)

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I am working with an application where in which I have a tree component and when a select a node and click a disable button , I want to disable the selected node(that is no further selection of that node possible until I enable it). I am using DefaultTreeCellRenderer for rendering nodes. I tried the following.
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Its not going to work if you implement the TreeCEllRenderer, cos' all it does is paint your tree.
What u need to implement is the treeSelectionListener interface,
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I would like to remove all the child node of my jtree. For instance I would like to remove the c, d, and e nodes. It's possible to remove all the child node or to remove by her name ("c", "d", and "e"). If yes what is the method that it permit to do.
A-----
|
b-------c
|
|--------d
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---------e
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There are a couple of ways it can be done. If your tree uses DefaultTreeModel as its TreeModel, you can use removeNodeFromParent(). This will remove the node from its parent and effectively remove its children, too. All nodes removed will be garbage-collected if there are no other references to them.
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Hi,
In my application i will be entering some string data in a text box for search criteria.
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@OP: please assign your dukes.
@Andre_Uhres: if you don't get rewarded in the next couple of days, please let me know here to get at least one duke for your effort.
Bye.

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This is about the 5th posting on the same question. Here is the link to the last posting so you can see what has already been suggested so you don't waste your time making the same suggestion.
http://forum.java.sun.com/thread.jspa?threadID=704980
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best regards

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Thanks for the reply...
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How to reach at a node of JTree : Urgent

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