question: returns the media id concode_field_sep String mediaCategory concode_elem_sep int quantity concode_elem_sep String mediaTitle concode_elem_sep String mediaYear concode_elem_sep String mediaType concode_elem_sep int mediaId concode_elem_sep double mediaCost concode_field_sep void setMediaCost concode_elem_sep int getQuantity concode_elem_sep String getRunning_time concode_elem_sep String getDirector concode_elem_sep ArrayList<String> getAuthors_of_Ebook concode_elem_sep void setBookEdition concode_elem_sep String getMediaTitle concode_elem_sep String getMediaType concode_elem_sep void setMediaId concode_elem_sep String getEdition concode_elem_sep String getMediaYear concode_elem_sep String getAcademicISBN concode_elem_sep String getVolume concode_elem_sep ArrayList<String> getActors concode_elem_sep void setAcademicISBN concode_elem_sep void setCategory concode_elem_sep ArrayList<String> getAuthors concode_elem_sep boolean setActors concode_elem_sep boolean setRunning_time concode_elem_sep double getMediaCost concode_elem_sep void setAcademicPublisher concode_elem_sep void setMediaYear concode_elem_sep String getCategory concode_elem_sep String getNumOfPagesOfBooks concode_elem_sep void setMediaType concode_elem_sep String getIsbn concode_elem_sep String getMovie_Code concode_elem_sep void setDirector concode_elem_sep void setMediaTitle concode_elem_sep void setIsbn concode_elem_sep void setAuthors concode_elem_sep String getPublisher concode_elem_sep void setQuantity concode_elem_sep String toString concode_elem_sep void setPublisher concode_elem_sep void setBookVolume concode_elem_sep String getAcademicPublisher
target: int function ( ) { return mediaId ; }