write Double to ByteBuffer - Java java.nio

Java examples for java.nio:ByteBuffer Double

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Description

write Double to ByteBuffer

Demo Code

/*/*from  ww w.ja  va  2 s  .  c  o m*/
 * Copyright 1999-2012 Alibaba Group.
 *  
 * 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.
 */
//package com.java2s;
import java.nio.ByteBuffer;

public class Main {
    public static final void writeDouble(ByteBuffer buffer, double d) {
        writeLong(buffer, Double.doubleToLongBits(d));
    }

    public static final void writeLong(ByteBuffer buffer, long l) {
        buffer.put((byte) (l & 0xff));
        buffer.put((byte) (l >>> 8));
        buffer.put((byte) (l >>> 16));
        buffer.put((byte) (l >>> 24));
        buffer.put((byte) (l >>> 32));
        buffer.put((byte) (l >>> 40));
        buffer.put((byte) (l >>> 48));
        buffer.put((byte) (l >>> 56));
    }
}

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