Java tutorial
//package com.java2s; /* * Copyright 2015-2016 OpenEstate.org. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; public class Main { /** * Return the root {@link Element} of a {@link Document}. * * @param doc * the document, where the root element is looked up * * @return * root element of the document or null, if not found */ public static Element getRootElement(Document doc) { if (doc == null) return null; NodeList children = doc.getChildNodes(); for (int i = 0; i < children.getLength(); i++) { Node node = children.item(i); if (node instanceof Element) return (Element) node; } return null; } }