Here you can find the source of collectionToCommaSeparatedString(List
public static String collectionToCommaSeparatedString(List<String> list)
//package com.java2s; /******************************************************************************* * Copyright 2013 The Linux Box Corporation. * * This file is part of Enkive CE (Community Edition). * * Enkive CE is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * Enkive CE 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public * License along with Enkive CE. If not, see * <http://www.gnu.org/licenses/>. *******************************************************************************/ import java.util.Collection; import java.util.Iterator; import java.util.List; public class Main { public static String collectionToCommaSeparatedString(List<String> list) { return collectionToString(list, ", "); }//w ww . j a va 2 s .c o m public static String collectionToString(Collection<String> collection, String elementSeparator) { StringBuffer s = new StringBuffer(); for (Iterator<String> i = collection.iterator(); i.hasNext();) { String s2 = i.next(); s.append(s2); if (i.hasNext()) { s.append(elementSeparator); } } return s.toString(); } }