code: public Date getDate(int columnIndex) {
  		Object fieldValue = data[columnIndex];
  		if (fieldValue == null) {
  			return null;
  		}
  		if (fieldValue instanceof Date) {
  			return (Date) fieldValue;
  		}
  		throw new DBFException(
  				"Unsupported type for Date at column:" + columnIndex + " " + fieldValue.getClass().getCanonicalName());
  	}
docs: Reads the data as Date
  
  @param columnIndex
  columnIndex
  @return the data as Date