Java Convert via ByteBuffer toLittleEndian(int value)

Description

Convert the value using the little endian coding.

License

Open Source License

Declaration

public static byte[] toLittleEndian(int value) 

Method Source Code

//package com.java2s;
/*/*from ww  w.ja  v a  2s.  com*/
 * ByteUtils.java
 * 
 * Copyright (c) 2009-2013 Guillaume Mazoyer
 * 
 * This file is part of GNOME Split.
 * 
 * GNOME Split 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.
 * 
 * GNOME Split 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 GNOME Split.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.nio.ByteBuffer;
import java.nio.ByteOrder;

public class Main {
    /**
     * Convert the value using the little endian coding.
     */
    public static byte[] toLittleEndian(int value) {
        ByteBuffer buffer = ByteBuffer.allocate(4);

        // Order as little endian and convert the value
        buffer.order(ByteOrder.LITTLE_ENDIAN);
        buffer.putInt(value);

        return buffer.array();
    }

    /**
     * Convert the value using the little endian coding.
     */
    public static byte[] toLittleEndian(long value) {
        ByteBuffer buffer = ByteBuffer.allocate(8);

        // Order as little endian and convert the value
        buffer.order(ByteOrder.LITTLE_ENDIAN);
        buffer.putLong(value);

        return buffer.array();
    }

    /**
     * Convert the value using the little endian coding and return only the 4
     * interesting bytes.
     */
    public static byte[] toLittleEndian(double value) {
        ByteBuffer buffer = ByteBuffer.allocate(8);

        // Order as little endian and convert the value
        buffer.order(ByteOrder.LITTLE_ENDIAN);
        buffer.putDouble(value);

        // Keep only the 4 needed bytes
        byte[] result = buffer.array();
        result = new byte[] { result[4], result[5], result[6], result[7] };

        return result;
    }
}

Related

1. toIntArray(byte[] byteArray)
2. toIntArray(final byte[] byteArray)
3. toIntArray(float[] floatArray)
4. toIntBuffer(int[] array)
5. toIntFromByteArray(byte[] byteArray)
6. toLMBCS(final String value)
7. toLong(byte data[])
8. toLong(byte[] array)
9. toLong(byte[] bytes)