Java tutorial
//package com.java2s; /* * The contents of this file are subject to the terms of the Common Development * and Distribution License (the License). You may not use this file except in * compliance with the License. * * You can obtain a copy of the License at http://www.netbeans.org/cddl.html * or http://www.netbeans.org/cddl.txt. * * When distributing Covered Code, include this CDDL Header Notice in each file * and include the License file at http://www.netbeans.org/cddl.txt. * If applicable, add the following below the CDDL Header, with the fields * enclosed by brackets [] replaced by your own identifying information: * "Portions Copyrighted [year] [name of copyright owner]" * * The Original Software is NetBeans. The Initial Developer of the Original * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun * Microsystems, Inc. All Rights Reserved. */ import org.w3c.dom.Document; import org.w3c.dom.Node; import org.w3c.dom.NodeList; public class Main { public static Node getElementByTagName(NodeList children, String tagName) { if (children == null || tagName == null) { return null; } Node requredNode = null; int length = children.getLength(); for (int i = 0; i < children.getLength(); i++) { Node tmpNode = children.item(i); if (tagName.equals(tmpNode.getNodeName())) { requredNode = tmpNode; break; } } return requredNode; } public static Node getElementByTagName(Document document, String tagName) { if (document == null || tagName == null) { return null; } NodeList nodes = document.getElementsByTagName(tagName); if (nodes == null || nodes.getLength() < 1) { return null; } return nodes.item(0); } }