Java examples for java.util:Collection Operation
Check a collection is empty or not.
/*//from ww w .ja v a2 s .co m * Copyright (C) 2009 - 2012 SMVP4G.COM * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 3 of * the License, or (at your option) any later version. * * This software 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ //package com.java2s; import java.util.*; public class Main { public static void main(String[] argv) { Collection collection = java.util.Arrays.asList("asdf", "java2s.com"); System.out.println(isEmpty(collection)); } /** * Check a collection is empty or not. * * @param collection * @return true if this collection is null or empty. */ public static boolean isEmpty(Collection<?> collection) { return collection == null || collection.isEmpty(); } }