Here you can find the source of toCSV(List
public static final <T> String toCSV(List<T> list)
//package com.java2s; /**/*ww w .jav a2 s. c o m*/ * Copyright 2011-2013 The Kuali Foundation * * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php * * 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. */ import java.util.List; public class Main { public static final String COMMA = ","; public static final <T> String toCSV(List<T> list) { StringBuilder sb = new StringBuilder(); for (int i = 0; i < list.size(); i++) { if (i != 0) { sb.append(COMMA); } sb.append(list.get(i)); } return sb.toString(); } }