public JHexEdit(HexData data)
public JHexEdit(File file) throws IOException
  public JHexEdit(HexData data)  {    HexTableModel model = new HexTableModel(data);    table = new HexTable(model);    setBorder(BorderFactory.createEmptyBorder(4, 4, 4, 4));    setLayout(new GridLayout());    add(new JScrollPane(table));    setPreferredSize(new Dimension(      table.getPreferredSize().width + 8, 400));  }