Here you can find the source of join(final Collection coll, final String delimiter)
| Parameter | Description |
|---|---|
| coll | Collection to Join |
| delimiter | Element delimiter |
public static String join(final Collection<?> coll, final String delimiter)
//package com.java2s; /*// ww w . ja v a 2s . c o m * The MIT License * * Copyright (c) 2009, 2010 Stefan Saasen * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ import java.util.Collection; import java.util.Iterator; public class Main { /** * Join the Array elements using the given delimiter. * * @param ary * Array to Join * @param delimiter * Element delimiter * @return String with joined array elements. */ public static String join(final Object[] ary, final String delimiter) { if (null == ary || ary.length == 0) { return ""; } StringBuffer buffer = new StringBuffer(); for (int i = 0; i < ary.length; i++) { if (i > 0) { buffer.append(delimiter); } buffer.append(ary[i]); } return buffer.toString(); } /** * Join the Collection elements using the given delimiter. * * @param coll * Collection to Join * @param delimiter * Element delimiter * @return String with joined Collection elements. */ public static String join(final Collection<?> coll, final String delimiter) { if (null == coll || coll.size() == 0) { return ""; } StringBuffer buffer = new StringBuffer(); Iterator<?> iter = coll.iterator(); while (iter.hasNext()) { buffer.append(iter.next()); if (iter.hasNext()) { buffer.append(delimiter); } } return buffer.toString(); } }