Re: Byte array

From:

Daniel Pitts <newsgroup.spamfilter@virtualinfinity.net>

Newsgroups:

comp.lang.java.programmer

Date:

Tue, 23 Jun 2009 18:11:02 -0700

Message-ID:

<L2f0m.40656$QS.2762@newsfe18.iad>

Dirk Bruere at NeoPax wrote:

markspace wrote:

Mayeul wrote:

Dirk Bruere at NeoPax wrote:

existing text source of hex bytes (about 20,000 bytes).

Actually you'll probably want to consider the option to just read
those bytes from your file at runtime, to avoid data duplication and
be sure your program and your data stay in sync.

Oh, I missed that part. Yeah 20k bytes is going to make an
unreasonable source file, to say the least.

I agree with Mayeul here: process the text file into bytes with a
short Java program. Read the bytes directly at runtime from a
resource file.

It's going to be just as hard to put them in a file and read it as hard
coding them in from the start. I'll make an int array and then convert
to bytes as I read from it.

Not so hard:
class DataClass {
private static final byte[] data;
  static {
     try {
     ByteArrayOutputStream out = new ByteArrayOutputStream();
     InputStream stream = DataClass.class.getResourceAsStream("d.data");
     int read;
     while ((read = stream.read()) >= 0) {
        out.write(read);
     }
     stream.close();
     data = out.toByteArray();
     } catch(Exception e) {
       throw new RuntimeException("Could not load data");
     }
  }
}

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Daniel Pitts' Tech Blog: <http://virtualinfinity.net/wordpress/>