Java File to Byte Array getBytesFromFile(File file)

Description

get Bytes From File

License

Apache License

Declaration

public static byte[] getBytesFromFile(File file) throws IOException 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.io.*;

public class Main {
    public static byte[] getBytesFromFile(File file) throws IOException {
        InputStream is = new FileInputStream(file);

        long length = file.length();

        if (length > Integer.MAX_VALUE) {
            throw new IOException("File is way too big");
        }/*w ww.  ja  va 2s  . co m*/

        byte[] bytes = new byte[(int) length];

        int offset = 0;
        int numRead = 0;
        while (offset < bytes.length && (numRead = is.read(bytes, offset, bytes.length - offset)) >= 0) {
            offset += numRead;
        }

        if (offset < bytes.length) {
            throw new IOException("Could not completely read file " + file.getName());
        }

        is.close();
        return bytes;
    }
}

Related

1. getBytesFromFile(File file)
2. getBytesFromFile(File file)
3. getBytesFromFile(File file)
4. getBytesFromFile(File file)
5. getBytesFromFile(File file)
6. getBytesFromFile(File inputFile)
7. getBytesFromFile(final File file)
8. getBytesFromFile(String file)
9. getBytesFromFile(String filename)