Java Double Number Create toDouble(byte[] byteArray)

Description

to Double

License

Open Source License

Declaration

public static double toDouble(byte[] byteArray) 

Method Source Code

//package com.java2s;
/**/*from   www  .  j av a2 s . com*/
 * Copyright 2007 DFKI GmbH.
 * All Rights Reserved.  Use is subject to license terms.
 *
 * This file is part of MARY TTS.
 *
 * MARY TTS is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, version 3 of the License.
 *
 * 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

public class Main {
    public static double toDouble(byte[] byteArray) {
        if (byteArray == null || byteArray.length != 8)
            return 0x0;

        return Double.longBitsToDouble(toLong(byteArray));
    }

    public static long toLong(byte[] byteArray) {
        if (byteArray == null || byteArray.length != 8)
            return 0x0;

        return (long) ((long) (0xff & byteArray[0]) << 56 | (long) (0xff & byteArray[1]) << 48
                | (long) (0xff & byteArray[2]) << 40 | (long) (0xff & byteArray[3]) << 32
                | (long) (0xff & byteArray[4]) << 24 | (long) (0xff & byteArray[5]) << 16
                | (long) (0xff & byteArray[6]) << 8 | (long) (0xff & byteArray[7]) << 0);
    }
}

Related

1. toDouble(byte[] arr)
2. toDouble(byte[] b)
3. toDouble(byte[] bytes)
4. toDouble(byte[] bytes)
5. toDouble(byte[] bytes, int index)
6. toDouble(byte[] bytes, int offset)