Java NameSpace with XML

 import java.io.IOException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.CharacterData;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;


public class NameSpaceXMLExample {
   
    public static final void main(String[] args) {
       
       String xmlFile="/home/localadmin/test2.xml";
       
        try {
            NameSpaceXMLExample xmlTester = new NameSpaceXMLExample(xmlFile);
        }
        catch (Exception e) {
            System.out.println( e.getClass().getName() +": "+ e.getMessage() );
        }
    }
   
    public NameSpaceXMLExample(String xmlFile) throws ParserConfigurationException, SAXException, IOException {


        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        System.out.println("DocumentBuilderFactory: "+ factory.getClass().getName());
       
        factory.setNamespaceAware(true);
        factory.setValidating(true);
        factory.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaLanguage", "http://www.w3.org/2001/XMLSchema");
       
        // Specify our own schema - this overrides the schemaLocation in the xml file
        //factory.setAttribute("http://java.sun.com/xml/jaxp/properties/schemaSource", "file:./test.xsd");
       
        DocumentBuilder builder = factory.newDocumentBuilder();
        builder.setErrorHandler( new SimpleErrorHandler() );


        Document document = builder.parse(xmlFile);
        String customerMakeAndModel ="";
        try{
            NodeList nodes = document.getElementsByTagName("ns0:Test");
                Element line = (Element) nodes.item(0);
                                //String data = getCharacterDataFromElement(line);
                                if (getCharacterDataFromElement(line) != null) {
                                    customerMakeAndModel=getCharacterDataFromElement(line);
                                    System.out.println(customerMakeAndModel);
                                } else {
                                    customerMakeAndModel="";
                                }
        }catch(Exception e){
            customerMakeAndModel="";
        }   
       
        Node rootNode  = document.getFirstChild();
   //     System.out.println("Root node: "+ rootNode.getNodeName()  );
    }

public static String getCharacterDataFromElement(Element e) {
    Node child = e.getFirstChild();
    if (child instanceof CharacterData) {
        CharacterData cd = (CharacterData) child;
        return cd.getData();
    }
    return "";
}
}
XML file
 ;ltns0:ABC xmlns:ns0="http://ABC/1.0">
 ;lttns0:Test<ABC;&gt
 ;lt/ns0:ABC>