Java Double to Byte Array doubleToBytes(double value)

Description

Computes the big-endian byte array representation of the IEEE-754 8 byte encoding of value .

License

Apache License

Declaration

public static byte[] doubleToBytes(double value) 

Method Source Code

//package com.java2s;
/*/*from   w  ww  .  j  av a  2s  .  c  o  m*/
 * Copyright (C) 2008 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

public class Main {
    /**
     * Computes the big-endian byte array representation of the IEEE-754 8 byte
     * encoding of {@code value}.
     */
    public static byte[] doubleToBytes(double value) {
        long asLong = Double.doubleToLongBits(value);
        // Cannot use the non-negative version.
        return new byte[] { (byte) ((asLong >>> 56) & 0xFF), (byte) ((asLong >>> 48) & 0xFF),
                (byte) ((asLong >>> 40) & 0xFF), (byte) ((asLong >>> 32) & 0xFF), (byte) ((asLong >>> 24) & 0xFF),
                (byte) ((asLong >>> 16) & 0xFF), (byte) ((asLong >>> 8) & 0xFF), (byte) ((asLong >>> 0) & 0xFF) };
    }
}

Related

1. doubleToBytes(double d, byte[] bytes, int off, boolean bigEndian)
2. doubleToBytes(double d, byte[] data, int[] offset)
3. doubleToBytes(double dnum, byte[] bytes, int startIndex)
4. doubleToBytes(double v, byte[] bytes)
5. doubleToBytes(double v, byte[] bytes, int off)
6. doubleToBytes(final double d)
7. doubleToBytes(final double val)
8. DoubleToBytes_With_Little_Endian(double number)
9. putDouble(byte[] b, double val)