Java Utililty Methods JTree Node

final ArrayList<TreeNode> list = new ArrayList<TreeNode>();
list.add(node);
final Enumeration children = node.children();
while (children.hasMoreElements()) {
    final TreeNode nextNode = (TreeNode) children.nextElement();
    list.addAll(toArray(nextNode));
return list;
...

Enumeration enumeration = n.breadthFirstEnumeration();
int count = 0;
while (enumeration.hasMoreElements()) {
    DefaultMutableTreeNode node = (DefaultMutableTreeNode) enumeration.nextElement();
    System.out.println(node.getDepth() + node.toString());
    count++;
System.out.println(count + " nodes in total.");
...

StringBuffer sbuf = new StringBuffer(indent + tree.getUserObject() + "\n");
Enumeration enumerator = tree.children();
while (enumerator.hasMoreElements()) {
    DefaultMutableTreeNode treeNode = (DefaultMutableTreeNode) enumerator.nextElement();
    sbuf.append(treetoString(treeNode, indent + "  "));
return sbuf.toString();

final TreeModel model = tree.getModel();
if (model instanceof DefaultTreeModel) {
    ((DefaultTreeModel) model).nodeStructureChanged((TreeNode) model.getRoot());
} else {
    tree.revalidate();
    tree.repaint();

int index = 0;
int childCount = parent.getChildCount();
if (childCount == 0) {
    return index;
ArrayList<String> existingNames = new ArrayList<String>();
existingNames.add(type);
for (int x = 0; x < childCount; x++) {
...