finds files that should be removed . concode_field_sep String URL_PREFIX concode_field_sep List<String> findNew concode_elem_sep List<File> findFiles concode_elem_sep HashMap<String,String> readLocalData concode_elem_sep HashMap<String,String> downloadAndParseUpdateData concode_elem_sep void downloadAndUpdate concode_elem_sep void removeFiles concode_elem_sep List<String> findUpdated concode_elem_sep void main
List < String > function ( HashMap < String , String > arg0 , HashMap < String , String > arg1 ) { ArrayList < String > loc0 = new ArrayList < > ( ) ; for ( String loc1 : arg0 . keySet ( ) ) { if ( ! arg1 . containsKey ( loc1 ) ) { loc0 . add ( loc1 ) ; } } return loc0 ; }