Java tutorial
//package com.java2s; /* * CDDL HEADER START * * The contents of this file are subject to the terms of the Common Development * and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at * src/com/vodafone360/people/VODAFONE.LICENSE.txt or * http://github.com/360/360-Engine-for-Android * See the License for the specific language governing permissions and * limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each file and * include the License file at src/com/vodafone360/people/VODAFONE.LICENSE.txt. * If applicable, add the following below this CDDL HEADER, with the fields * enclosed by brackets "[]" replaced with your own identifying information: * Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END * * Copyright 2010 Vodafone Sales & Services Ltd. All rights reserved. * Use is subject to license terms. */ import java.util.ArrayList; import java.util.Collections; import java.util.Hashtable; import java.util.List; public class Main { /** * Returns a list of keys from the map in alphabetical order * * @param map The map to sort * @return The ordered list of keys */ private static List<String> getSortedListOfKeys(Hashtable<String, Object> map) { List<String> mList = new ArrayList<String>(map.keySet()); Collections.sort(mList); return mList; } }