How to know which leaf node i click and how to add a listener to each node?

Question

hi! hello to all members, i have a problem i know how to create a listener, but i dont know how to add a listener to each leaf node. here is the scenario i want to do, i have a JTree where theres a topic that you can select on each leaf node, so when the user click the specific topic it will open another JFrame,which i dont know how to do it also, that its! the next problem will be how do i know which leaf node i select, so that i can open a right topic before the JFrame will open?please, i am very need this to solve quickly as possible. thanks again to all members.

Answer 1

What you have to do is to add a mouse listener on your JTree. Try something like this:
tree.addMouseListener(new java.awt.event.MouseAdapter() {
         public void mouseReleased(MouseEvent e) {
            tree_mouseReleased(e);
private void tree_mouseReleased(MouseEvent e) {
      TreePath selPath = tree.getSelectionPath();
      // Check If the click is the Right Click
      if (e.isPopupTrigger() == true) {
      // This is your right Click
       else {
                 // This is your Left Click
}Your other problem: Set the userObject on nodes and on left click compare it with your object, if it matches, display the appropriate file. Alternatively, if your nodes are unique, you can match the names to open the file.
Hope this Helps
Regard
Raheel