How to get the root class in call heirarchy

Hi,
Is anybody have some idea regarding the getting name of a class whose, main method was called at the time of begining. In other words if we say, how can we get the invoker class of a java program with multiple level of inheritence.
Regards

DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();
     DocumentBuilder db=factory.newDocumentBuilder();
     Document doc=db.parse(new File(ur xml file"));
     Element root=doc.getDocumentElement();
     System.out.println("root "+root.getNodeName());

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As far as I understand you want to get the display value instead of the index
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