docs: public StreamOut createFile(String strFullFileName)
      {
          StreamOut streamOut = null;
          try   {
              File file = new File(strFullFileName);
              String pathName = file.getParent();
              File fileDir = new File(pathName);
              fileDir.mkdirs();
              streamOut = new StreamOut(strFullFileName);
          } catch (IOException ex)    {
              ex.printStackTrace();
              streamOut = null;
          }
          return streamOut;
      }