Here you can find the source of convertListToStringWithSeparator( List
public static String convertListToStringWithSeparator( List<String> myList, String separator)
//package com.java2s; /* MarcWorx MARC Library - Utilities for manipulation of MARC records Copyright (C) 2013 Todd Walker, Talwood Solutions 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 3 of the License, or (at your option) any later version./*from w ww . j a va2 s.c o m*/ 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. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ import java.util.Iterator; import java.util.List; public class Main { public static String convertListToStringWithSeparator( List<String> myList, String separator) { StringBuilder result = new StringBuilder(); Iterator<String> iter = myList.iterator(); while (iter.hasNext()) { String item = iter.next(); // append each list item to the result string result.append(item); // do this only if we have more if (iter.hasNext()) { result.append(separator); } } return result.toString(); } }