Here you can find the source of arrayToString(final String[] values)
public static final String arrayToString(final String[] values)
//package com.java2s; /* *********************************************************************** * * project: org.matsim.*//from w w w . java 2 s .c o m * * * *********************************************************************** * * * * copyright : (C) 2010 by the members listed in the COPYING, * * LICENSE and WARRANTY file. * * email : info at matsim dot org * * * * *********************************************************************** * * * * 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 2 of the License, or * * (at your option) any later version. * * See also COPYING, LICENSE and WARRANTY file * * * * *********************************************************************** */ public class Main { public static final String arrayToString(final String[] values) { boolean isFirst = true; StringBuilder str = new StringBuilder(); for (String mode : values) { if (!isFirst) { str.append(','); } str.append(mode); isFirst = false; } return str.toString(); } }