Here you can find the source of getClone(List> lls)
public static List<List<String>> getClone(List<List<String>> lls)
//package com.java2s; /*// w w w . j a v a2 s . c o m * File : TorrentUtils.java * Created : 13-Oct-2003 * By : stuff * * Azureus - a Java Bittorrent client * * 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 ( see the LICENSE file ). * * 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.*; public class Main { public static List<List<String>> getClone(List<List<String>> lls) { if (lls == null) { return (lls); } List<List<String>> result = new ArrayList<List<String>>(lls.size()); for (List<String> l : lls) { result.add(new ArrayList<String>(l)); } return (result); } }