Here you can find the source of toString(Document d)
public static String toString(Document d)
//package com.java2s; //License from project: Open Source License import org.w3c.dom.Document; import org.w3c.dom.ls.DOMImplementationLS; import org.w3c.dom.ls.LSSerializer; public class Main { public static String toString(Document d) { DOMImplementationLS domImplementation = (DOMImplementationLS) d.getImplementation(); LSSerializer lsSerializer = domImplementation.createLSSerializer(); return lsSerializer.writeToString(d); }//from w ww . ja v a 2 s . c om }