Here you can find the source of reverse(Collection collection)
public static Collection reverse(Collection collection)
//package com.java2s; /*//w w w . ja v a 2 s .co m * GNU LESSER GENERAL PUBLIC LICENSE Copyright (C) 2006 The Lobo Project * * This library 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 2.1 of the License, or (at your option) * any later version. * * This library 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 library; if not, write to the Free Software Foundation, Inc., * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * * Contact info: lobochief@users.sourceforge.net */ import java.util.Collection; import java.util.Iterator; import java.util.LinkedList; public class Main { public static Collection reverse(Collection collection) { LinkedList newCollection = new LinkedList(); Iterator i = collection.iterator(); while (i.hasNext()) { newCollection.addFirst(i.next()); } return newCollection; } }