Java Convert via ByteBuffer toLong(byte[] array)

Description

Creates a Long from a byte array.

License

Open Source License

Parameter

Parameter	Description
array	the byte array to convert

Return

the converted long or null if failed

Declaration

public static Long toLong(byte[] array) 

Method Source Code

//package com.java2s;
/*/*from   w  ww  .  jav a2  s . co m*/
Copyright (c) 2012 Thomas Zink, 
    
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 3 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 General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.nio.ByteBuffer;

public class Main {
    /**
     * Creates a Long from a byte array.
     * 
     * @param array the byte array to convert
     * @return the converted long or null if failed
     */
    public static Long toLong(byte[] array) {
        if ((array.length * 8) < Long.SIZE)
            return null;
        ByteBuffer buffer = ByteBuffer.wrap(array);
        return buffer.getLong();
    }
}

Related

1. toIntBuffer(int[] array)
2. toIntFromByteArray(byte[] byteArray)
3. toLittleEndian(int value)
4. toLMBCS(final String value)
5. toLong(byte data[])
6. toLong(byte[] bytes)
7. toLongArray(byte[] b)
8. ToLongArray(byte[] data)
9. toLongArray(byte[] ids)