Java tutorial
//package com.java2s; /* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is DRM License Service. * * The Initial Developer of the Original Code is Sony Mobile Communications Inc. * Portions created by Sony Mobile Communications Inc. are Copyright (C) 2014 * Sony Mobile Communications Inc. All Rights Reserved. * * Contributor(s): * * ***** END LICENSE BLOCK ***** */ import java.nio.ByteBuffer; import java.nio.ByteOrder; public class Main { public static long Uint64FromBuffer(byte[] buffer, int offset) { ByteBuffer bb = ByteBuffer.wrap(buffer, offset, 8); bb.order(ByteOrder.BIG_ENDIAN); long result = bb.getLong(); return result; } }