Here you can find the source of join(Collection
Parameter | Description |
---|---|
list | a parameter |
delimiter | a parameter |
public static <T> String join(Collection<T> list, String delimiter)
//package com.java2s; /*//from w w w . jav a 2 s .c o m * This file is part of ConfigHub. * * ConfigHub 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. * * ConfigHub 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 ConfigHub.??If not, see <http://www.gnu.org/licenses/>. */ import java.util.*; public class Main { /** * Joins the list members into a delimiter separated String. * * @param list * @param delimiter * @return */ public static <T> String join(Collection<T> list, String delimiter) { StringBuilder sb = new StringBuilder(); int index = 0; for (T line : list) { sb.append(line); if (list.size() != index + 1) { sb.append(delimiter); } index++; } return sb.toString(); } public static <T> String join(T[] list, String delimiter) { if (null == list) { return ""; } StringBuilder sb = new StringBuilder(); int index = 0; for (int i = 0; i < list.length; i++) { String line = list[i].toString(); sb.append(line.trim()); if (list.length != index + 1) { sb.append(delimiter); } index++; } return sb.toString(); } }