public List<String> getHeader() {
      if (header == null) {
         return Collections.emptyList();
      }
      return Collections.unmodifiableList(header);
   }
public List < String > getHeader ( ) { if ( header == null ) { return Collections . emptyList ( ) ; } return Collections . unmodifiableList ( header ) ; }
Gets the header read in from the csv file or specified via the CSV specification.

@return The header of the CSV file