Adding a Node to a JTree Component : Tree « Swing JFC « Java






  1. Java
  2. Swing JFC
  3. Tree

Adding a Node to a JTree Component

    

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());

  }
}








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