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XMLEventReader and XMLEventWriter for Stax XML parser

import java.util.Calendar; import javax.xml.stream.XMLEventFactory; import javax.xml.stream.XMLEventReader; import javax.xml.stream.XMLEventWriter; import javax.xml.stream.XMLInputFactory; import javax.xml.stream.XMLOutputFactory; import javax.xml.stream.events.Characters; import javax.xml.stream.events.XMLEvent; class StaxEvent {     XMLEventFactory m_eventFactory = XMLEventFactory.newInstance();     public static void main(String[] args) throws Exception {             StaxEvent ms = new StaxEvent();             XMLEventReader reader = XMLInputFactory.newInstance().createXMLEventReader(new java.io.FileInputStream("yourXML.xml"));             XMLEventWriter writer = XMLOutputFactory.newInstance().createXMLEventWriter(System.out);             while (reader.hasNext()) {                 XMLEvent event = (XMLEvent) reader.next();                 if (event.getEventType() == event.CHARACTERS) {                     writer.add(ms.getNewCharactersEvent(event.asCharacters()));                 } else {                     writer.add(event);                 }             }             writer.flush();     }     private Characters getNewCharactersEvent(Characters event) {         if (event.getData().equalsIgnoreCase("Name1")) {             return m_eventFactory.createCharacters(Calendar.getInstance().getTime().toString());         } else {             return event;         }     } }