Java Byte Array to Long bytesToLong(byte[] bytes, int off, boolean bigEndian)

Here you can find the source of bytesToLong(byte[] bytes, int off, boolean bigEndian)

Description

bytes To Long

License

LGPL

Declaration

public static long bytesToLong(byte[] bytes, int off, boolean bigEndian) 

Method Source Code

//package com.java2s;
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1/*from  w ww. j a v a 2 s. com*/
 *
 * 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 part of dcm4che, an implementation of DICOM(TM) in
 * Java(TM), hosted at https://github.com/gunterze/dcm4che.
 *
 * The Initial Developer of the Original Code is
 * Agfa Healthcare.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * See @authors listed below
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

public class Main {
    public static long bytesToLong(byte[] bytes, int off, boolean bigEndian) {
        return bigEndian ? bytesToLongBE(bytes, off) : bytesToLongLE(bytes, off);
    }

    public static long bytesToLongBE(byte[] bytes, int off) {
        return ((long) bytes[off] << 56) + ((long) (bytes[off + 1] & 255) << 48)
                + ((long) (bytes[off + 2] & 255) << 40) + ((long) (bytes[off + 3] & 255) << 32)
                + ((long) (bytes[off + 4] & 255) << 24) + ((bytes[off + 5] & 255) << 16)
                + ((bytes[off + 6] & 255) << 8) + (bytes[off + 7] & 255);
    }

    public static long bytesToLongLE(byte[] bytes, int off) {
        return ((long) bytes[off + 7] << 56) + ((long) (bytes[off + 6] & 255) << 48)
                + ((long) (bytes[off + 5] & 255) << 40) + ((long) (bytes[off + 4] & 255) << 32)
                + ((long) (bytes[off + 3] & 255) << 24) + ((bytes[off + 2] & 255) << 16)
                + ((bytes[off + 1] & 255) << 8) + (bytes[off] & 255);
    }
}

Related

  1. bytesToLong(byte[] bytes)
  2. bytesToLong(byte[] bytes)
  3. bytesToLong(byte[] bytes)
  4. bytesToLong(byte[] bytes, int index)
  5. bytesToLong(byte[] bytes, int off)
  6. bytesToLong(byte[] data)
  7. bytesToLong(byte[] data)
  8. bytesToLong(byte[] data)
  9. bytesToLong(byte[] data, int offset)