Expand All for a tree path : TreeModel « Swing « Java Tutorial

 *  soapUI, copyright (C) 2004-2009 eviware.com 
 *  soapUI is free software; you can redistribute it and/or modify it under the 
 *  terms of version 2.1 of the GNU Lesser General Public License as published by 
 *  the Free Software Foundation.
 *  soapUI is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without 
 *  even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
 *  See the GNU Lesser General Public License for more details at gnu.org.

import java.util.Enumeration;

import javax.swing.JTree;
import javax.swing.tree.TreeNode;
import javax.swing.tree.TreePath;

public class TreeUtils {
  public static void expandAll(JTree tree, TreePath parent, boolean expand) {
    // Traverse children
    TreeNode node = (TreeNode) parent.getLastPathComponent();
    if (node.getChildCount() >= 0) {
      for (Enumeration e = node.children(); e.hasMoreElements();) {
        TreeNode n = (TreeNode) e.nextElement();
        TreePath path = parent.pathByAddingChild(n);
        expandAll(tree, path, expand);

    // Expansion or collapse must be done bottom-up
    if (expand) {
    } else {

14.68.1.Tree node editing with DefaultTreeModel
14.68.2.implements TreeModelimplements TreeModel
14.68.3.Genealogy Tree
14.68.4.JTree.getModel().addTreeModelListener(new TreeModelListener())
14.68.5.Expand All for a tree path
14.68.6.Get tree path from TreeNode