Here you can find the source of join(CharSequence separator, Iterable strings)
| Parameter | Description |
|---|---|
| separator | Separator to join with. |
| strings | Strings to join. |
public static String join(CharSequence separator, Iterable<?> strings)
//package com.java2s; /**//w w w . ja v a 2s.c o m * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.Iterator; public class Main { /** * Concatenates strings, using a separator. * * @param separator Separator to join with. * @param strings Strings to join. */ public static String join(CharSequence separator, Iterable<?> strings) { Iterator<?> i = strings.iterator(); if (!i.hasNext()) { return ""; } StringBuilder sb = new StringBuilder(i.next().toString()); while (i.hasNext()) { sb.append(separator); sb.append(i.next().toString()); } return sb.toString(); } }