java - Override hover method in JUNG -

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I am using the framework to simulate a bubble GUI for directory browsing, now I want to override the hover method I'm trying to so that when I hover over a square that pulls anything else "Add other nodes" I'm using in the library. 

  Public Zero Hover Changed (ObjectsNew Event Event, Object Original Hojed Object, Object Newheez Object) {// System. Out.println ("hover" + number); If (new hook object example of number) {hover = (number) newHoveredObject; Widget = search widget (hover); Task.schedule (750); } Else {widget = null; Hover = null; Task.cancel (); GetSceneAnimator () AnimateForegroundColor (label, new color (255, 255, 255, 0)); }}

I tried to add the code of the drawing for the first time but it is not working 

  factory < Integer & gt; Edge Factor = New Factory & lt; Integer & gt; () {Int i = 0; Make a public integer () {return i ++; }}; One & lt; String, integer & gt; CreateTree (one> string, integer> graph) {//graph.addVertex("A0 "); Graph.addEdge (EdgeFactor.ctre), "Micromax", "B0"); Graph.addEdge (EdgeFactor.Create (), "Micromax", "B1"); Graph.addEdge (EdgeFactor.Create (), "Micromax", "B2"); }


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