How to paint bytearray

[Oba22]

Doing a post-requirement to retrieve the application, in return, getting bytearray how to paint it somewhere? If I'm trying to put it in a textview, I'm getting a crash.

String myURL = "http://s92640jz.bget.ru/register.php";
        String params = "login=user123&open_key=rgh24sfs3efs234dir&key_size=4096";
        byte[] data = null;
        InputStream is = null;
    try {
        URL url = new URL(myURL);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);
        conn.setDoInput(true);

        conn.setRequestProperty("Content-Length", "" + Integer.toString(params.getBytes().length));
        OutputStream os = conn.getOutputStream();
        data = params.getBytes("UTF-8");
        os.write(data);
        data = null;

        conn.connect();
        int responseCode= conn.getResponseCode();

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        is = conn.getInputStream();

        byte[] buffer = new byte[1024]; // Такого вот размера буфер
        // Далее, например, вот так читаем ответ
        int bytesRead;
        while ((bytesRead = is.read(buffer)) != -1) {
            baos.write(buffer, 0, bytesRead);
        }
        data = baos.toByteArray();
    } catch (Exception e) {
    } finally {
        try {
            if (is != null)
                is.close();
        } catch (Exception ex) {}
    }

[meriah]

Arrays.toString(s) will return String presentation of mass

byte[] b1 = new byte[] {97, 98, 99};
String s1 = Arrays.toString(b1);

String s2 = new String(b1);
Log.v("MYLOG", s1);        // -> "[97, 98, 99]"

Log.v("MYLOG", s2);        // -> "abc";