Here you can find the source of hashCode(int result, Object obj)
public static int hashCode(int result, Object obj)
//package com.java2s; /*/* w w w. j a v a2s .c o m*/ Strandz LGPL - an API that matches the user to the data. Copyright (C) 2007 Chris Murphy Strandz LGPL is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA The authors can be contacted via www.strandz.org */ public class Main { public static int hashCode(int result, Object obj) { result = 37 * result + (obj == null ? 0 : obj.hashCode()); return result; } public static int hashCode(int result, int obj) { result = 37 * result + obj; return result; } public static int hashCode(int result, boolean b) { result = 37; if (b) { result++; } return result; } }