Here you can find the source of setTextContent(Element elem, String value)
public static void setTextContent(Element elem, String value)
//package com.java2s; /*//from ww w. j av a2 s . c om ItsNat Java Web Application Framework Copyright (C) 2007-2011 Jose Maria Arranz Santamaria, Spanish citizen This software is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ import org.w3c.dom.Element; import org.w3c.dom.Text; public class Main { public static void setTextContent(Element elem, String value) { if (value == null) value = ""; Text textNode = (Text) elem.getFirstChild(); if (textNode == null) { if (!value.equals("")) { textNode = elem.getOwnerDocument().createTextNode(value); elem.appendChild(textNode); } } else if (value.equals("")) elem.removeChild(textNode); else textNode.setData(value); } }