Java tree node details

Question

I have built a tree using JTree and I want to obtain the node details(like they appear in the frame drawn here).

Answer 1

TreeNode root = (TreeNode)tree.getModel().getRoot();
Enumeration childrenEnum = root.children();
while (childrenEnum.hasMoreElements()) {
    TreeNode childNode = (TreeNode)childrenEnum.nextElement();
    String childString = childNode.toString();
    // ....
}

Check out the docs for TreeNode (the 'highest level' interface) and DefaultMutableTreeNode (the most commonly used implementation). DefaultMutableTreeNode offers the getUserObject() / setUserObject() methods if you need to hold more complex data in the tree node.