desarrolla un codigo en java que coge un fichero llamado examen de una base de datos y lo descarga
public void descargaExamen(){ InputStream in = null; FileOutputStream out = null; try { in = new FileInputStream("examen"); out = new FileOutputStream("examen"); byte[] buffer = new byte[1024]; int len = in.read(buffer); while (len != -1) { out.write(buffer, 0, len); len = in.read(buffer); } } catch (IOException e) { e.printStackTrace(); } finally { if (in != null) { try { in.close(); } catch (IOException e) { e.printStackTrace(); } } if (out != null) { try { out.close(); } catch (IOException e) { e.printStackTrace(); } } } }