Java tutorial
//package com.java2s; /* * Copyright 2013 The Last Crusade ContactLastCrusade@gmail.com * * This file is part of SoundStream. * * SoundStream 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. * * SoundStream 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 SoundStream. If not, see <http://www.gnu.org/licenses/>. */ public class Main { /** * Get a class or interface from an object, if available. This is useful * when an object may implement optional interfaces, and we want to * get those interfaces. * * As an example, see {@link AudioPlayerWithEvents}. * * @param object the object to inspect * @param desiredClass the class to get * @return */ public static <T> T getIfAvailable(Object object, Class<T> desiredClass) { return (desiredClass.isAssignableFrom(object.getClass())) ? desiredClass.cast(object) : null; } }