How to redirect output to a byte array?

I've Googled this, and looked around in the tutorials, but I haven't found a simple example of how to assign an output to a byte array. Maybe I'm just too much of a newbie to know how to navigate the documentation, but...
What I need is for this code (which does exactly what I want) to put the output in a byte array instead of in the file "test.txt". How do I accomplish that?
Thanks,
--gary
FileWriter writer = null;
        try {
          writer = new FileWriter("test.txt");
            MinimalHTMLWriter htmlWriter = new MinimalHTMLWriter(writer,
              (StyledDocument)textRegion.getDocument());
          htmlWriter.write();
        catch (IOException ex) {
            ... etc...

Thanks, That works fine!
--gary

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How to redirect output to a byte array?

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