Java tutorial
//package com.java2s; /* * Author(s): Pascal Heus (pheus@opendatafoundation.org) * * This product has been developed with the financial and * technical support of the UK Data Archive Data Exchange Tools * project (http://www.data-archive.ac.uk/dext/) and the * Open Data Foundation (http://www.opendatafoundation.org) * * Copyright 2007 University of Essex (http://www.esds.ac.uk) * * This program 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 program 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 full text of the license is also available on the Internet at * http://www.gnu.org/copyleft/lesser.html * */ public class Main { /** * Converts a 8-byte value into a double * * @param buffer * @return converted value as double */ public static double byte8ToDouble(byte[] buffer) { long lvalue = (((long) (buffer[7]) << 56) + ((long) (buffer[6] & 0xFF) << 48) + ((long) (buffer[5] & 0xFF) << 40) + ((long) (buffer[4] & 0xFF) << 32) + ((long) (buffer[3] & 0xFF) << 24) + ((long) (buffer[2] & 0xFF) << 16) + ((long) (buffer[1] & 0xFF) << 8) + (long) (buffer[0] & 0xFF)); return (Double.longBitsToDouble(lvalue)); } }