Java tutorial
//package com.java2s; /* * Juick * Copyright (C) 2008-2011, Ugnich Anton * * 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/>. */ public class Main { public static String escape(String str) { String res = ""; for (int i = 0; i < str.length(); i++) { final char c = str.charAt(i); switch (c) { case '<': res += "<"; break; case '>': res += ">"; break; case '&': res += "&"; break; case '\'': res += "'"; break; case '"': res += """; break; default: res += c; } } return res; } }