Java tutorial
//package com.java2s; /* * This file is part of Integreat. * * Integreat 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. * * Integreat 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 Integreat. If not, see <http://www.gnu.org/licenses/>. */ public class Main { public static boolean equals(Object a, Object b) { return (a == null) ? (b == null) : a.equals(b); } }