Here you can find the source of isCollectionListEmpty()
public static boolean isCollectionListEmpty()
//package com.java2s; /*/*from w ww. j a v a2 s.co m*/ * @(#)Common.java - carries various stuff, the center class * * Copyright (c) 2004-2011 by dvb.matt, All Rights Reserved. * * This file is part of ProjectX, a free Java based demux utility. * By the authors, ProjectX is intended for educational purposes only, * as a non-commercial test project. * * * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ import java.util.ArrayList; import java.util.List; public class Main { /** * carries all new collection classes */ private static List collectionList = new ArrayList(); /** * return collection */ public static boolean isCollectionListEmpty() { return collectionList.isEmpty(); } }