Here you can find the source of getCommaSeparatedList(List
public static String getCommaSeparatedList(List<String> list)
//package com.java2s; /**/*from w w w . ja v a 2 s .c o m*/ * Copyright 2011 Mark Derricutt. * * Contributing authors: * Daniel Bower * * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * Utilities for working with Files and FileSets * */ import java.util.Iterator; import java.util.List; public class Main { /** * Turn a list of Strings into a concatenated string of filenames */ public static String getCommaSeparatedList(List<String> list) { StringBuffer sb = new StringBuffer(); for (Iterator<String> i = list.iterator(); i.hasNext();) { sb.append(i.next()); if (i.hasNext()) { sb.append(","); } } return sb.toString(); } }