public JPanel retornaPanel(String[] agenda){
        JPanel pane = new JPanel();
        DefaultListModel listModel = new DefaultListModel();
        JList list = new JList(listModel);

        for(int i = 0; i < agenda.length; i++)
            listModel.addElement(agenda[i]);
        JScrollPane scroll = new JScrollPane(list);
        pane.add(scroll);

        return pane;

    }