Question: Please write the java code as a OBSERVER DESIGN PATTERN based on the following UML system. feel free to add new ideas that is related.

Please write the java code as a OBSERVER DESIGN PATTERN based on the following UML system. feel free to add new ideas that is related. Thank you))

Please write the java code as a OBSERVER DESIGN PATTERN based on

Flights Aircrafts Ismodel + manufacturer tcode - + Flight. Number person thame + Nationality It Pamport - Numbes + Dioration + dept - airport taror-airport + panengers + pilot + aircraft Airliner Cargo Pilot + Flying hours Hspoken languages [ passenger Itnum of_kh It passengers) It load-goods, Cangoflights passenger Flights t load() i Poengers list) Airport thame tcity It country It list-ara flights tst-dept-flights It cost ()

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