DefaultMutableTreeNode r = new DefaultMutableTreeNode( "TreeT" );

    JTree00 t = new JTree00( r );

    DefaultMutableTreeNode t = t.addObject( r, "1" );
    DefaultMutableTreeNode t = t.addObject( r, "2" );

    t.addObject( p1, "1.1" );
    t.addObject( p1, "1.2" );