Here you can find the source of longFrombytes(byte[] b, int pos)
public static long longFrombytes(byte[] b, int pos)
//package com.java2s; /* /*from w ww. j a v a 2 s . c om*/ * Developed by Marc Schoenefeld <marc.schoenefeld@gmx.org> * Updates by Corey Benninger, Max Sobell, Zach Lanier of Intrepidus Group * {corey.benninger,max.sobell,zach.lanier}@intrepidusgroup.com * * Copyright (C) 2009 Marc Schoenefeld <http://www.illegalaccess.org> * * This file is a part of undx. * * This project 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. * * This project 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ public class Main { public static long longFrombytes(byte[] b, int pos) { // System.out.println(Arrays.toString(b)+":"+pos); // long a = b2i(b[pos]) + b2i(b[pos + 1]) * 256 + b2i(b[pos + 2]) * 65536 // + b2i(b[pos + 3]) * 65536 * 256; long c = b2i(b[pos + 4]) + b2i(b[pos + 5]) * 256 + b2i(b[pos + 6]) * 65536 + b2i(b[pos + 7]) * 65536 * 256; c = c << 16; return c; } static int b2i(byte b) { int x = b; if (b < 0) { x = 256 + b; } return x; } }