Here you can find the source of toString(Object object)
public static String toString(Object object)
//package com.java2s; /*//from w w w. j a va 2 s . c o m * Copyright 2009-2013 by The Regents of the University of California * 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 from * * 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.Arrays; public class Main { public static String toString(Object object) { if (object instanceof Object[]) { return Arrays.deepToString((Object[]) object); } else { return String.valueOf(object); } } }