JUNG是否能够从图表中挑选，移动，调整大小或删除Annotation个对象？
修改
在考虑AnnotationDemo（由@sdasdadas引用）之后，确定了下列感兴趣的代码（第126-134行）：
// Get the RenderContext for this visualization viewer
RenderContext<String,Number> rc = vv.getRenderContext();
// Create a new AnnotatingGraphMousePlugin with default settings.
// The AnnotatingGraphMousePlugin class is a subclass of AbstractGraphMousePlugin
// and also implements the interfaces MouseListener and MouseMotionListener. As
// such, the respective overridden methods would be a interesting place to embed
// the logic for the required behavior. However I am still not sure!
AnnotatingGraphMousePlugin<String,Number> annotatingPlugin =
new AnnotatingGraphMousePlugin<String,Number>(rc);
// Create a GraphMouse for the main view, using the annotating mouse plugin.
final AnnotatingModalGraphMouse<String,Number> graphMouse =
new AnnotatingModalGraphMouse<String,Number>(rc, annotatingPlugin);
和（在第174-180行）：
// Create annotation controls to allow the selection of color, shape, fill,
// and z-order. None of these controls is of interest to us.
AnnotationControls<String,Number> annotationControls =
new AnnotationControls<String,Number>(annotatingPlugin);
根据上面显示的评论，我的初步问题保持不变。