Here you can find the source of arrayToString(Object[] objects)
public static String arrayToString(Object[] objects)
//package com.java2s; /**// www. jav a2 s . 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. */ public class Main { public static String arrayToString(Object[] objects) { boolean first = true; StringBuilder sb = new StringBuilder(); for (Object object : objects) { if (first) { first = false; } else { sb.append(", "); } sb.append(object.toString()); } return sb.toString(); } }