How to get a byte array out of a binary file, and copy it into another file, effectively creating a copy of the original file

BinaryFileCopy.java

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class BinaryFileCopy {

	public static void main(String[] args) throws IOException {
		File file = new File("/home/eriko/Videos/big_buck_bunny_480p_stereo.ogg");
		byte[] fileData = new byte[(int) file.length()];
		DataInputStream dis = new DataInputStream(new FileInputStream(file));
		dis.readFully(fileData);
		dis.close();
		
		File outFile = new File("/home/eriko/Videos/copia.ogg");
		DataOutputStream dos = new DataOutputStream(new FileOutputStream(outFile));
		dos.write(fileData, 0, fileData.length);
		dos.close();
	}

}