question: public void startPart ( String contentType , String [ ] headers ) throws IOException { writeCurrentBoundary ( ) ; if ( contentType != null ) { writeString ( MimeUtils . HEADER_CONTENT_TYPE + ": " + contentType ) ; out . write ( CRLF ) ; } for ( int i = 0 ; headers != null && i < headers . length ; i ++ ) { writeString ( headers [ i ] ) ; out . write ( CRLF ) ; } out . write ( CRLF ) ; }
target:  Starts new MIME part. Use write() method to write content of the part.