Java Byte Array Create toByteArray(int data)

Description

Convert int to byte array

License

Open Source License

Parameter

Parameter	Description
data	- the int value

Return

the byte array

Declaration

public static byte[] toByteArray(int data) 

Method Source Code

//package com.java2s;
/**//  w  w w.  java 2  s.  co m
 * Syncnapsis Framework - Copyright (c) 2012-2014 ultimate
 * 
 * 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 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 MECHANTABILITY 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 Plublic License along with this program;
 * if not, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    /**
     * Convert int to byte array
     * 
     * @param data - the int value
     * @return the byte array
     */
    public static byte[] toByteArray(int data) {
        // @formatter:off
        return new byte[] { (byte) ((data >> 24) & 0xff), (byte) ((data >> 16) & 0xff), (byte) ((data >> 8) & 0xff),
                (byte) ((data >> 0) & 0xff) };
        // @formatter:on
    }

    /**
     * Convert long to byte array
     * 
     * @param data - the long value
     * @return the byte array
     */
    public static byte[] toByteArray(long data) {
        // @formatter:off
        return new byte[] { (byte) ((data >> 56) & 0xff), (byte) ((data >> 48) & 0xff),
                (byte) ((data >> 40) & 0xff), (byte) ((data >> 32) & 0xff), (byte) ((data >> 24) & 0xff),
                (byte) ((data >> 16) & 0xff), (byte) ((data >> 8) & 0xff), (byte) ((data >> 0) & 0xff) };
        // @formatter:on
    }

    /**
     * Convert float to byte array
     * 
     * @param data - the float value
     * @return the byte array
     */
    public static byte[] toByteArray(float data) {
        return toByteArray(Float.floatToRawIntBits(data));
    }

    /**
     * Convert double to byte array
     * 
     * @param data - the double value
     * @return the byte array
     */
    public static byte[] toByteArray(double data) {
        return toByteArray(Double.doubleToRawLongBits(data));
    }

    /**
     * Convert boolean to byte array
     * 
     * @param data - the boolean value
     * @return the byte array
     */
    public static byte[] toByteArray(boolean data) {
        return new byte[] { (byte) (data ? 0x01 : 0x00) };
    }
}

Related

1. toByteArray(final int i)
2. toByteArray(final int i, final byte[] output, final int offset)
3. toByteArray(final int value)
4. toByteArray(final String bitString)
5. toByteArray(final String hexString)
6. toByteArray(int i)
7. toByteArray(int in)
8. toByteArray(int in, int size)
9. toByteArray(int intr)