Java File Read via ByteBuffer readDouble(final byte[] bytes, final int length, final int offset)

Description

Returns a double representing the bytes.

License

Apache License

Parameter

Parameter	Description
bytes	the byte array
length	the length of the chunk
offset	the offset of the chunk

Return

a double representing the bytes

Declaration

public static final double readDouble(final byte[] bytes, final int length, final int offset) 

Method Source Code

//package com.java2s;
/*//from  www . j  a v  a 2 s  . c  om
 * Copyright 2015 ANTONIO CARLON
 *
 * 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 {
    /**
     * Returns a double representing the bytes.
     *
     * @param bytes
     *            the byte array
     * @param length
     *            the length of the chunk
     * @param offset
     *            the offset of the chunk
     * @return a double representing the bytes
     */
    public static final double readDouble(final byte[] bytes, final int length, final int offset) {
        double output = -1d;

        if (bytes == null) {
            return output;
        }

        final byte[] doubleBytes = new byte[length];
        for (int i = 0; i < doubleBytes.length; i++) {
            doubleBytes[i] = bytes[offset + i];
        }
        output = ByteBuffer.wrap(doubleBytes).getDouble();

        return output;
    }
}

Related

1. readData(String fileName, int size)
2. readDelimitedFromInputStream(InputStream inputStream)
3. readDouble(BufferedReader br, double[] buf)
4. readDouble(byte[] src, int pointer)
5. readDouble(FileChannel fileChannel, ByteOrder byteOrder)
6. readEntireFile(java.io.File file)
7. readerToString(Reader reader)
8. readFC(String fname, int length)
9. readFile(File file)