How to parse XML in Java
This example shows how to create a DOM document tree by reading an XML file
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import java.io.File;
import java.io.IOException;

class DomReader {
public static Document parseXmlFile(String filename, boolean validate) {
try {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setValidating(validate);
Document doc = factory.newDocumentBuilder().parse(new File(filename));
return doc;
} catch (SAXException e) {
throw new RuntimeException("Parsing error, the XML input is not valid", e);
} catch (ParserConfigurationException e) {
throw new RuntimeException("Parser error", e);
} catch (IOException e) {
throw new RuntimeException("File error", e);
}
}
}