Here you can find the source of arrayToString(String[] args, String delimiter)
public static String arrayToString(String[] args, String delimiter)
//package com.java2s; /*//from w w w.j ava2 s . co m * ParsingAid.java * * Created on May 21, 2007, 4:42 PM * * Copyright (C) 2010 Tal Eisenberg * * This program 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. * * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */ public class Main { public static String arrayToString(String[] args, String delimiter) { StringBuilder b = new StringBuilder(); for (String arg : args) { b.append(arg); b.append(delimiter); } return b.substring(0, b.length() - delimiter.length()); } }