JTree and dropdown options on right clicking nodes

Question

I\'m trying to use the JTree and implement different drop downs for all the parent nodes and the children nodes.

Here\'s what I\'ve done:

pmTree.addM         


        

Answer 1

You check the selected node:

DefaultMutableTreeNode node = (DefaultMutableTreeNode)pmTree.getLastSelectedPathComponent();

to see if you have a "parent" or a "child" node. You should select the node at the mouse position first, otherwise it will not be the right node. Call

TreePath path = pmTree.getPathForLocation(evt.getX(), evt.getY());
if (path != null) {
    pmTree.setSelectionPath(path);
} else {
    return;
}

at the beginning of treePopup. (methods in Java should start with a lower case letter!)