Java tutorial
//package com.java2s; /** * * Copyright (C) 2004-2008 FhG Fokus * * This file is part of the FhG Fokus UPnP stack - an open source UPnP implementation * with some additional features * * You can redistribute the FhG Fokus UPnP stack and/or modify it * under the terms of the GNU General Public License Version 3 as published by * the Free Software Foundation. * * For a license to use the FhG Fokus UPnP stack software under conditions * other than those described here, or to purchase support for this * software, please contact Fraunhofer FOKUS by e-mail at the following * addresses: * upnpstack@fokus.fraunhofer.de * * The FhG Fokus UPnP stack 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, see <http://www.gnu.org/licenses/> * or write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ import java.util.Collections; import java.util.Comparator; import java.util.Enumeration; import java.util.Hashtable; import java.util.Vector; public class Main { /** Returns an alphabetically sorted list of the keys. */ public static Vector getSortedKeyList(Hashtable hashtable) { Vector result = new Vector(); Enumeration keys = hashtable.keys(); while (keys.hasMoreElements()) { result.add(keys.nextElement()); } Collections.sort(result, new Comparator() { public int compare(Object a, Object b) { String textA = a.toString(); String textB = b.toString(); return textA.compareToIgnoreCase(textB); } }); return result; } }