import java.io.File;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
public class Main {
public static void main(String[] argv) throws Exception{
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setIgnoringComments(true);
Document doc = factory.newDocumentBuilder().parse(new File("infilename.xml"));
// doc will not contain any Comment nodes
}
}