Here you can find the source of prettyPrintXml(Document doc)
public static void prettyPrintXml(Document doc) throws TransformerException
//package com.java2s; /*//from www . j a v a 2s . c om * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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. * * * Author Of This Original Software : Sandeep Soni [ Sandeep.Soni at gmail dot com ] * With Active Contributions from Murali Krishna Reddy * Do Let Me Know by Email if you used the software and found it useful. * */ import org.w3c.dom.Document; import javax.xml.transform.*; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; public class Main { public static void prettyPrintXml(Document doc) throws TransformerException { TransformerFactory tranFactory = TransformerFactory.newInstance(); Transformer aTransformer = tranFactory.newTransformer(); Source src = new DOMSource(doc); Result dest = new StreamResult(System.out); aTransformer.transform(src, dest); } }