Java Utililty Methods JTree Create

createEnumeration(String className, TreeNode root)
create Enumeration

try {
 Class clazz = Class.forName("javax.swing.tree.DefaultMutableTreeNode$" + className);
 Constructor constructor = clazz.getDeclaredConstructor(DefaultMutableTreeNode.class, TreeNode.class);
 constructor.setAccessible(true);
 return (Enumeration<TreeNode>) constructor.newInstance(new DefaultMutableTreeNode(), root);
} catch (Exception e) {
 e.printStackTrace();
return null;

TreeCellRenderer createSimpleTreeCellRenderer(ImageIcon icon)
create Simple Tree Cell Renderer

return createSimpleTreeCellRenderer(null, icon, new JTree().getFont());

JTree createTree()
create Tree

DefaultMutableTreeNode top = new DefaultMutableTreeNode("home");
top.add(new DefaultMutableTreeNode("Alice"));
top.add(new DefaultMutableTreeNode("Bob"));
top.add(new DefaultMutableTreeNode("Eve"));
JTree tree = new JTree(top);
return tree;

void createTree(JTree jTree1, String[] leaves)
create Tree

DefaultMutableTreeNode root = new DefaultMutableTreeNode("", true);
jTree1.setModel(new DefaultTreeModel(root));
jTree1.setRootVisible(false);
DefaultMutableTreeNode currentNode = root;
Map<String, DefaultMutableTreeNode> pathList = new HashMap<String, DefaultMutableTreeNode>();
for (int i = 0; i < leaves.length; i++) {
 String[] s = leaves[i].split("/");
 for (int j = 0; j < s.length; j++) {
...

MutableTreeNode createTreeNode(String text, int depth)
Creates a random tree of nodes of type MutableTreeNode (actually: DefaultMutableTreeNode).

DefaultMutableTreeNode node = new DefaultMutableTreeNode(text);
if (--depth >= 0)
 for (int i = bellCurve(); --i >= 0;)
 node.add(createTreeNode(createCellValue(), depth));
return node;