Reading a DOM tree from XML document : DOM Tree « XML « Java Tutorial

1. Java Tutorial
2. XML
3. DOM Tree

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;

public class Main {
  public static void main(String[] argv) throws Exception {

    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder loader = factory.newDocumentBuilder();

    Document document = loader.parse("sample.xml");
    Element tree = document.getDocumentElement();
  }

}