Visiting All the Nodes in a JTree Component
import java.util.Enumeration; import javax.swing.JTree; import javax.swing.tree.TreeNode; public class Main { public static void main(String[] argv) throws Exception { JTree tree = new JTree(); visitAllNodes(tree); } public static void visitAllNodes(JTree tree) { TreeNode root = (TreeNode) tree.getModel().getRoot(); visitAllNodes(root); } public static void visitAllNodes(TreeNode node) { System.out.println(node); if (node.getChildCount() >= 0) { for (Enumeration e = node.children(); e.hasMoreElements();) { TreeNode n = (TreeNode) e.nextElement(); visitAllNodes(n); } } } }