选择Java树中的所有节点

Question

I would insert from right menu the option to select all the nodes of a tree. This functionality is implemented in standard pressing ctrl-a. How do I similura that functionality?

JTree tree = new JTree();

JPopupMenu popMenuTree = new JPopupMenu();
 JMenuItem selectAll = new JMenuItem();selectAll.setText("SelectAll");
    selectAll.setActionCommand("selectAll");

    KeyStroke ctrlXKeyStroke = KeyStroke.getKeyStroke("control A");
    selectAll.setAccelerator(ctrlXKeyStroke);
    popMenuTree.add(selectAll);

thank you so much

Answer 1

由于弹出菜单与常规菜单不同，并不总是包含在组件中，因此除非可见弹出菜单，否则弹出菜单项中的加速器将不起作用。