Here you can find the source of hasHtmlTag(String content)
public static boolean hasHtmlTag(String content)
//package com.java2s; /*/*w w w. ja va 2 s .c o m*/ This file belongs to the Servoy development and deployment environment, Copyright (C) 1997-2010 Servoy BV This program is free software; you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program; if not, see http://www.gnu.org/licenses or write to the Free Software Foundation,Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 */ public class Main { /** tags in HTML 4.0.1 (some of them are deprecated) */ @SuppressWarnings("nls") public static final String[] tags = { "<!--", "<!DOCTYPE", "<a", "<abbr", "<acronym", "<address", "<applet", "<area", "<b", "<base", "<basefont", "<bdo", "<big", "<blockquote", "<body", "<br", "<button", "<caption", "<center", "<cite", "<code", "<col", "<colgroup", "<dd", "<del", "<dir", "<div", "<dfn", "<dl", "<dt", "<em", "<fieldset", "<font", "<form", "<frame", "<frameset", "<h1", "<h2", "<h3", "<h4", "<h5", "<h6", "<head", "<hr", "<html", "<i", "<iframe", "<img", "<input", "<ins", "<isindex", "<kbd", "<label", "<legend", "<li", "<link", "<map", "<menu", "<meta", "<noframes", "<noscript", "<object", "<ol", "<optgroup", "<option", "<p", "<param", "<pre", "<q", "<s", "<samp", "<script", "<select", "<small", "<span", "<strike", "<strong", "<style", "<sub", "<sup", "<table", "<tbody", "<td", "<textarea", "<tfoot", "<th", "<thead", "<title", "<tr", "<tt", "<u", "<ul", "<var", "<xmp" }; public static boolean hasHtmlTag(String content) { if (content != null) { if (!content.contains("<")) //$NON-NLS-1$ return false; for (String tag : tags) { if (content.contains(tag)) return true; } } return false; } }