Adding a Node to a JTree Component : JTree Node « Swing « Java Tutorial

import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.MutableTreeNode;
import javax.swing.tree.TreePath;

public class Main {
  public static void main(String[] argv) throws Exception {
    JTree tree = new JTree();
    DefaultTreeModel model = (DefaultTreeModel) tree.getModel();

    TreePath path = tree.getSelectionPath();
    MutableTreeNode node = (MutableTreeNode) path.getLastPathComponent();

    MutableTreeNode newNode = new DefaultMutableTreeNode("green");

    model.insertNodeInto(newNode, node, node.getChildCount());


14.67.JTree Node
14.67.1.Get child count, depth, leaf count
14.67.2.Adding a Node to a JTree Component
14.67.3.Delete tree node
14.67.4.Removing a Node to a JTree Component
14.67.5.Expression TreeExpression Tree
14.67.6.Swing TreeSwing Tree
14.67.7.JTree node mouse click event
14.67.8.A JTree subclass that displays the tree of AWT or Swing component that make up a GUI
14.67.9.Tree with custom icon
14.67.10.CheckBox Tree node
14.67.11.Get path for all expanded or not expanded tree pathes
14.67.12.Converting All Nodes in a JTree Component to a TreePath Array
14.67.13.Expanding or Collapsing All Nodes in a JTree Component
14.67.14.JTree root cannot be removed with removeNodeFromParent(), use DefaultTreeModel.setRoot() to remove the root
14.67.15.Searching node in a JTree