Here you can find the source of mapToProperties(Map params)
public static Properties mapToProperties(Map params)
//package com.java2s; /* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1//from www. jav a2 s. c o m * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is the FRIL Framework. * * The Initial Developers of the Original Code are * The Department of Math and Computer Science, Emory University and * The Centers for Disease Control and Prevention. * Portions created by the Initial Developer are Copyright (C) 2008 * the Initial Developer. All Rights Reserved. * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ import java.util.Iterator; import java.util.Map; import java.util.Properties; public class Main { public static Properties mapToProperties(Map params) { Properties p = new Properties(); for (Iterator iterator = params.keySet().iterator(); iterator.hasNext();) { String name = (String) iterator.next(); String value = (String) params.get(name); if (value != null) { p.setProperty(name, value); } } return p; } }