Java Double to Byte Array doubleToBytes(double v, byte[] bytes)

Description

double To Bytes

License

Apache License

Declaration

public static void doubleToBytes(double v, byte[] bytes) 

Method Source Code

//package com.java2s;
/*/*from w w w  .jav  a 2s. c  o m*/
 * Copyright [2012-2015] PayPal Software Foundation
 *
 * 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 {
    public static void doubleToBytes(double v, byte[] bytes) {
        doubleToBytes(v, bytes, 0);
    }

    public static void doubleToBytes(double v, byte[] bytes, int offset) {
        longToBytes(Double.doubleToLongBits(v), bytes, offset);
    }

    public static byte[] doubleToBytes(double v) {
        return longToBytes(Double.doubleToLongBits(v));
    }

    public static void longToBytes(long v, byte[] bytes) {
        longToBytes(v, bytes, 0);
    }

    public static void longToBytes(long v, byte[] bytes, int offset) {
        long tmp = v;
        for (int i = 0; i < 8; i++) {
            bytes[offset + 7 - i] = (byte) (tmp & 0xFF);
            tmp >>= 8;
        }
    }

    public static byte[] longToBytes(long v) {
        long tmp = v;
        byte[] b = new byte[8];
        for (int i = 0; i < 8; i++) {
            b[7 - i] = (byte) (tmp & 0xFF);
            tmp >>= 8;
        }
        return b;
    }
}

Related

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