Here you can find the source of dumpList(StringBuffer sb, Collection
public static <T> void dumpList(StringBuffer sb, Collection<T> slist)
//package com.java2s; /******************************************************************************* * Copyright (c) 2006-2010 eBay Inc. All Rights Reserved. * 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 *******************************************************************************/ import java.util.Collection; public class Main { public static <T> void dumpList(StringBuffer sb, Collection<T> slist) { boolean first = true; for (T s : slist) { if (!first) { sb.append(","); }/*from w ww. j a v a 2s. com*/ sb.append(s); first = false; } } }