Here you can find the source of arraysAreDifferent(String ar1[][], String ar2[][])
public static boolean arraysAreDifferent(String ar1[][], String ar2[][])
//package com.java2s; /************************************************************************************************ * _________ _ ____ _ __ __ _ _ _ _ _ ___ * |__ / ___|__ _ ___| |__ / ___|_ _(_)_ __ __ \ \ / /_ _| | | ___| |_| | | |_ _| * / / | / _` / __| '_ \\___ \ \ /\ / / | '_ \ / _` \ \ /\ / / _` | | |/ _ \ __| | | || | * / /| |__| (_| \__ \ | | |___) \ V V /| | | | | (_| |\ V V / (_| | | | __/ |_| |_| || | * /____\____\__,_|___/_| |_|____/ \_/\_/ |_|_| |_|\__, | \_/\_/ \__,_|_|_|\___|\__|\___/|___| * |___/ * * Copyright (c) 2016 Ivan Vaklinov <ivan@vaklinov.com> * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE./* www.j av a 2s . c o m*/ **********************************************************************************/ public class Main { public static boolean arraysAreDifferent(String ar1[][], String ar2[][]) { if (ar1 == null) { if (ar2 != null) { return true; } } else if (ar2 == null) { return true; } if (ar1.length != ar2.length) { return true; } for (int i = 0; i < ar1.length; i++) { if (ar1[i].length != ar2[i].length) { return true; } for (int j = 0; j < ar1[i].length; j++) { String s1 = ar1[i][j]; String s2 = ar2[i][j]; if (s1 == null) { if (s2 != null) { return true; } } else if (s2 == null) { return true; } else { if (!s1.equals(s2)) { return true; } } } } return false; } }