Java Convert via ByteBuffer toLong(byte[] bytes)

Description

Convert a long value encoded as a byte[] back into its long value.

License

Apache License

Parameter

Parameter	Description
bytes	byte[8] array with an encoded long value.

Return

Decoded long value.

Declaration

public static long toLong(byte[] bytes) 

Method Source Code

//package com.java2s;
/*//from ww  w  . ja va 2 s.  co m
 * Copyright (C) 2014 Dell, 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.
 */

import java.nio.ByteBuffer;

public class Main {
    /**
     * Convert a long value encoded as a byte[] back into its long value. This method is
     * the opposite of {@link #toBytes(long)}.
     *
     * @param bytes byte[8] array with an encoded long value.
     * @return      Decoded long value.
     */
    public static long toLong(byte[] bytes) {
        // Extract a long stored in a byte[] using a ByteBuffer method.
        ByteBuffer buffer = ByteBuffer.wrap(bytes);
        return buffer.getLong();
    }
}

Related

1. toIntFromByteArray(byte[] byteArray)
2. toLittleEndian(int value)
3. toLMBCS(final String value)
4. toLong(byte data[])
5. toLong(byte[] array)
6. toLongArray(byte[] b)
7. ToLongArray(byte[] data)
8. toLongArray(byte[] ids)
9. toMappedBuffer(File file)