Method read

src/main/java/com/amazon/ion/impl/ByteReader.java:64–64

reads a single byte and returns it as an unsigned value, that is from 0 to 255. This returns a ByteReader.EOF (-1) if there is not data to read. @return next byte of data @throws IOException

()

     * @throws IOException
     */
    public int  read() throws IOException;
    /**
     * reads a number of bytes into the callers supplied buffer (dst).
     * This will return the number of bytes read, if any.