Searching a jtree with string

Question

hi guys!
i am searching a JTree with a "string"
now i want to go the specific node (all expanded)
by matching the string to the node
how do i do it
any suggestions
thank u

Answer 1

class FindAction extends KeyAdapter {
    private ModelTree               tree;
    private DefaultMutableTreeNode  found;
    private Enumeration             nodes;
    private Stack                   history;
    public FindAction(ModelTree tree) {
        this.tree = tree;
        found = null;
        history = new Stack();
    public void keyTyped(KeyEvent event) {
        String text = ((JTextField)event.getSource()).getText();
        switch (event.getKeyChar()) {
        case KeyEvent.VK_ENTER:
            if (text.equals("")) nodes = tree.topNode.preorderEnumeration();
            break;
        case KeyEvent.VK_BACK_SPACE:
            try {
                TreePath path = (TreePath)history.pop();
                tree.setSelectionPath(path);
                tree.scrollPathToVisible(path);
            } catch (EmptyStackException ese) {}
            return;
        default:
            text += event.getKeyChar();
            if ((found != null) && found.toString().startsWith(text)) {
                return;
            if (nodes == null) {
                nodes = tree.topNode.preorderEnumeration();
            break;
        if ((found = find(text)) == null) {
            // try it one more time from the top
            nodes = tree.topNode.preorderEnumeration();
            found = find(text);
        try {
            TreePath path = new TreePath(found.getPath());
            tree.setSelectionPath(path);
            tree.scrollPathToVisible(path);
            history.push(path);
        } catch (NullPointerException e) {}
    private DefaultMutableTreeNode find(String searchString) {
        while (nodes.hasMoreElements()) {
            DefaultMutableTreeNode node = (DefaultMutableTreeNode)nodes.nextElement();
            if (node.toString().startsWith(searchString)) {
                return node;
        return null;
}