java.awt.dnd
接口 
Autoscroll
DragGestureListener
DragSourceListener
DragSourceMotionListener
DropTargetListener
 
DnDConstants
DragGestureEvent
DragGestureRecognizer
DragSource
DragSourceAdapter
DragSourceContext
DragSourceDragEvent
DragSourceDropEvent
DragSourceEvent
DropTarget
DropTarget.DropTargetAutoScroller
DropTargetAdapter
DropTargetContext
DropTargetDragEvent
DropTargetDropEvent
DropTargetEvent
MouseDragGestureRecognizer
异常 
InvalidDnDOperationException