Java tutorial
//package com.java2s; /* Copyright (C) 2010-2011, Mamadou Diop. * Copyright (C) 2011, Doubango Telecom. * * Contact: Mamadou Diop <diopmamadou(at)doubango(dot)org> * * This file is part of imsdroid Project (http://code.google.com/p/imsdroid) * * imsdroid is free software: you can redistribute it and/or modify it under the terms of * the GNU General Public License as published by the Free Software Foundation, either version 3 * of the License, or (at your option) any later version. * * imsdroid 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 General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ public class Main { public static boolean isNullOrEmpty(String s) { return ((s == null) || ("".equals(s))); } public static boolean equals(String s1, String s2, boolean ignoreCase) { if (s1 != null && s2 != null) { if (ignoreCase) { return s1.equalsIgnoreCase(s2); } else { return s1.equals(s2); } } else { return ((s1 == null && s2 == null) ? true : false); } } }