/******************************************************************************* * Breakout Cave Survey Visualizer * * Copyright (C) 2014 James Edwards * * jedwards8 at fastmail dot fm * * This program 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 2 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 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., 51 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *******************************************************************************/ package org.andork.util; public class Java7 { public static class Objects { /** * Returns {@code true} if the arguments are equal to each other and * {@code false} otherwise. Consequently, if both arguments are * {@code null}, {@code true} is returned and if exactly one argument is * {@code null}, {@code false} is returned. Otherwise, equality is * determined by using the {@link Object#equals equals} method of the * first argument. * * @param a * an object * @param b * an object to be compared with {@code a} for equality * @return {@code true} if the arguments are equal to each other and * {@code false} otherwise * @see Object#equals(Object) */ public static boolean equals(Object a, Object b) { return a == b || a != null && a.equals(b); } private Objects() { } } private Java7() { } }