Converts an int32 into a 4 byte array - Java java.lang

Java examples for java.lang:byte Array Convert

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Description

Converts an int32 into a 4 byte array

Demo Code

/**/*from  w  w  w .ja v a  2 s. c o  m*/
 * 
 * Copyright (C) 2004-2008 FhG Fokus
 *
 * This file is part of the FhG Fokus UPnP stack - an open source UPnP implementation
 * with some additional features
 *
 * You can redistribute the FhG Fokus UPnP stack and/or modify it
 * under the terms of the GNU General Public License Version 3 as published by
 * the Free Software Foundation.
 *
 * For a license to use the FhG Fokus UPnP stack software under conditions
 * other than those described here, or to purchase support for this
 * software, please contact Fraunhofer FOKUS by e-mail at the following
 * addresses:
 *   upnpstack@fokus.fraunhofer.de
 *
 * The FhG Fokus UPnP stack 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/>
 * or write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */
//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        int value = 2;
        System.out.println(java.util.Arrays
                .toString(int32ToByteArray(value)));
    }

    /** Converts an int32 into a 4 byte array */
    public static byte[] int32ToByteArray(int value) {
        return new byte[] { (byte) (value >> 24 & 0xFF),
                (byte) (value >> 16 & 0xFF), (byte) (value >> 8 & 0xFF),
                (byte) (value >> 0 & 0xFF) };
    }
}

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