package socproject;
import java.io.IOException;
import javax.xml.parsers.*;
import org.w3c.dom.*;
import org.xml.sax.SAXException;

public class SocProject {
    public static void main(String[] args) throws ParserConfigurationException, SAXException, IOException {
          DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        factory.setValidating(false);

        DocumentBuilder builder = factory.newDocumentBuilder();
        Document doc = builder.parse("contact.xml");
        Element root = doc.getDocumentElement();

        Element age = (Element) root.getElementsByTagName("Age").item(0);
        System.out.print(age.getTagName() + " : ");
        System.out.println(age.getTextContent().trim());
        System.out.println("Attributes:"+age.getAttributes().item(0).getNodeName());

        NamedNodeMap attributes = root.getAttributes();
        System.out.println(attributes.getNamedItem("id"));
        System.out.println(attributes.getNamedItem("number"));
    }

}

XML
<?xml version="1.0" encoding="UTF-8"?>
<Contact id="kelvindecosta" number="+971 52 506 1180">
	<Name>
		<FirstName>Kelvin</FirstName>
		<MiddleName>Piety</MiddleName>
		<LastName>DeCosta</LastName>
	</Name>
        <Age isMinor="false">
            21
        </Age>
</Contact>