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Java code:
doc.getDocumentElement().normalize();
// parser participants
Element root = doc.getDocumentElement();
System.out.println("Root element of the doc is " + doc.getDocumentElement().getNodeName());
NodeList listofParticipant = doc.getElementsByTagName("participant");
NodeList listofRoles = doc.getElementsByTagName("role");
NodeList listofOrggroups = doc.getElementsByTagName("orggroup");
System.out.println("the number of participants is " + listofParticipant.getLength());
// ÕâÒ»¸ö³öÀ´µÄ×ÜÊÇ 26 ¸ö
System.out.println("the number of roles is " + listofRoles.getLength());
System.out.println("the number of orggroups is " + listofOrggroups.getLength());
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