Here you can find the source of join(final Collection
Parameter | Description |
---|---|
list | strings |
separator | separator |
public static String join(final Collection<String> list, final String separator)
//package com.java2s; /*/*from ww w. j av a 2 s . c om*/ * Copyright 2016 SimplifyOps, Inc. (http://simplifyops.com) * * 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. */ import java.util.*; public class Main { /** * Join a list of strings into a single string with a separator * * @param list strings * @param separator separator * * @return joined string */ public static String join(final Collection<String> list, final String separator) { final StringBuilder sb = new StringBuilder(); for (final String s : list) { if (sb.length() > 0) { sb.append(separator); } sb.append(s); } return sb.toString(); } }