JTree with form builder
问题 I created a form with default NetBeans edito and put a jTree on it. It somehow then creates bunch of elements such as "colors", "sports", "food" in there. But it is not in the creation code. Where is it coming from and how can I edit it... Even if I do jTree1.removeAll(); everything is still there... and non of my code for adding new items to the jTree working. private void test(java.awt.event.MouseEvent evt) { //trying to remove all, but it does not remove anything jTree1.removeAll(); //it