Java JTree search by tree path
import java.util.Enumeration; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTree; import javax.swing.text.Position.Bias; import javax.swing.tree.DefaultMutableTreeNode; import javax.swing.tree.TreeNode; import javax.swing.tree.TreePath; import javax.swing.tree.TreeSelectionModel; public class Main { public static void main(String[] args) { DefaultMutableTreeNode rootNode = new DefaultMutableTreeNode("Root"); DefaultMutableTreeNode a = new DefaultMutableTreeNode("A"); rootNode.add(a);//ww w . j a v a 2s . com DefaultMutableTreeNode a1 = new DefaultMutableTreeNode("1"); a.add(a1); DefaultMutableTreeNode a2 = new DefaultMutableTreeNode("2"); a.add(a2); DefaultMutableTreeNode b = new DefaultMutableTreeNode("B"); rootNode.add(b); DefaultMutableTreeNode b1 = new DefaultMutableTreeNode("1"); b.add(b1); JTree tree = new JTree(rootNode); TreePath path = find(tree, new String[] {"Root","A"} ); System.out.println(path); tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION); JFrame f = new JFrame(); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.add(new JScrollPane(tree)); f.setSize(250, 250); f.setVisible(true); } public static TreePath find(JTree tree, String[] nodes) { TreeNode root = (TreeNode) tree.getModel().getRoot(); return find2(tree, new TreePath(root), nodes, 0, false); } public static TreePath findByName(JTree tree, String[] names) { TreeNode root = (TreeNode) tree.getModel().getRoot(); return find2(tree, new TreePath(root), names, 0, true); } private static TreePath find2(JTree tree, TreePath parent, Object[] nodes, int depth, boolean byName) { TreeNode node = (TreeNode) parent.getLastPathComponent(); Object o = node; // If by name, convert node to a string if (byName) { o = o.toString(); } // If equal, go down the branch if (o.equals(nodes[depth])) { // If at end, return match if (depth == nodes.length - 1) { return parent; } // Traverse children if (node.getChildCount() >= 0) { for (Enumeration e = node.children(); e.hasMoreElements();) { TreeNode n = (TreeNode) e.nextElement(); TreePath path = parent.pathByAddingChild(n); TreePath result = find2(tree, path, nodes, depth + 1, byName); // Found a match if (result != null) { return result; } } } } // No match at this branch return null; } }