title: Googlesheet APIv4 getting empty cells
body: <p>I have a googlesheet where a column may contain no information in it.  While iterating through the rows and looking at that column, if the column is blank, it's not returning anything.  Even worse, if I do a get of a full row and include that common, say get 5 columns, I get back only 4 columns when any of the columns are empty.  How do I return either NULL or an empty string if I'm getting a row of columns and one of the cells in a column is empty?</p>
  
  <pre><code>// Build a new authorized API client service.
  Sheets service = GoogleSheets.getSheetsService();
  range = "Functional Users!A3:E3";
  response = service.spreadsheets().values().get(spreadsheetId, range).execute();
  values = response.getValues();
  cells = values.get(0);
  </code></pre>
  
  <p>I am getting 5 cells in the row.  cells.size() should ALWAYS return five.  However if any of the 5 cells are blank, it will return fewer cells.  Say only the cell at B3 is empty.  cells.size() will be 4.  Next iteration, I get A4:E4 and cell D4 is empty.  Again, cells.size() will be 4.  With no way to know just which cell is missing.  If A4 AND D4 AND E4 are empty, cells.size() will be 2.  </p>
  
  <p>How do I get it to return 5 cells regardless of empty cells?   </p>