Java tutorial
//package com.java2s; /* * Copyright (c) Ludger Solbach. All rights reserved. * The use and distribution terms for this software are covered by the * Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php) * which can be found in the file license.txt at the root of this distribution. * By using this software in any fashion, you are agreeing to be bound by * the terms of this license. * You must not remove this notice, or any other, from this software. */ public class Main { public static String encode(String s) { if (s == null || s.equals("")) { return ""; } String r = s; r = r.replaceAll("&", "&"); r = r.replaceAll(">", ">"); r = r.replaceAll("<", "<"); r = r.replaceAll("\"", """); r = r.replaceAll("'", "'"); return r; } }