question: public void writeNext ( String [ ] nextLine ) { if ( nextLine == null ) return ; StringBuilder sb = new StringBuilder ( INITIAL_STRING_SIZE ) ; for ( int i = 0 ; i < nextLine . length ; i ++ ) { if ( i != 0 ) { sb . append ( separator ) ; } String nextElement = nextLine [ i ] ; if ( nextElement == null ) continue ; if ( quotechar != NO_QUOTE_CHARACTER ) sb . append ( quotechar ) ; sb . append ( stringContainsSpecialCharacters ( nextElement ) ? processLine ( nextElement ) : nextElement ) ; if ( quotechar != NO_QUOTE_CHARACTER ) sb . append ( quotechar ) ; } sb . append ( lineEnd ) ; pw . write ( sb . toString ( ) ) ; }
target:  Writes the next line to the file.