question: static public boolean doesFileExist ( Context c , String fileName , long fileSize , boolean deleteFileOnMismatch ) { File fileForNewFile = new File ( Helpers . generateSaveFileName ( c , fileName ) ) ; if ( fileForNewFile . exists ( ) ) { if ( fileForNewFile . length ( ) == fileSize ) { return true ; } if ( deleteFileOnMismatch ) { fileForNewFile . delete ( ) ; } } return false ; }
target:  Helper function to ascertain the existence of a file and return true/false appropriately