DefaultMutableTreeNode root=new DefaultMutableTreeNode();
DefaultTreeModel model=new DefaultTreeModel(root);
删除用:
root.removeNodeFromParent(DefaultMutableTreeNode treenode);
添加用:
root.insertNodeInto(DefaultMutableTreeNode treenode,DefaultMutableTreeNode root,int i)
DefaultTreeModel model=new DefaultTreeModel(root);
删除用:
root.removeNodeFromParent(DefaultMutableTreeNode treenode);
添加用:
root.insertNodeInto(DefaultMutableTreeNode treenode,DefaultMutableTreeNode root,int i)
panel.add(yourNewTree);
panel.repaint();
或者是把frame.repaint();
具体的你试一下吧