Java tutorial
//package com.java2s; /* * Copyright (C) 2014 Ingenic Semiconductor * * ZhangYanMing <yanming.zhang@ingenic.com, jamincheung@126.com> * * Elf/IDWS Project * * This program 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. * * 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., * 675 Mass Ave, Cambridge, MA 02139, USA. * */ public class Main { private static double readDouble(byte[] bytes) { long bits = 0; bits = (long) ((((long) bytes[0] << 56) & 0xff00000000000000L) | (((long) bytes[1] << 48) & 0x00ff000000000000L) | (((long) bytes[2] << 40) & 0x0000ff0000000000L) | (((long) bytes[3] << 32) & 0x000000ff00000000L) | (((long) bytes[4] << 24) & 0x00000000ff000000L) | (((long) bytes[5] << 16) & 0x0000000000ff0000L) | (((long) bytes[6] << 8) & 0x000000000000ff00L) | (((long) bytes[7] << 0) & 0x00000000000000ffL)); return Double.longBitsToDouble(bits); } }