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

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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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))

Aircratts
Flights
+ Flight- Numbe
tmodel
t manudactren
+code
person
Flight-
+ Dioration
+ dept-airport
t aro- alr port
+ panengers
+ pilot
+ alrc Yott
+na me
+Nationality
+ pasmport -Numbes
Airliner
Congo
pilot
+Flyinghours
Spoken lănguage
panenger
+ Pasengensi)
tlood-goodsul
thum -g-ky
pomengen Fleghts
Air port
+hame
tcity
t country
+List-ar fighb
tit-dept-flights
Cangof lighto
t1oad ()
+Cost ()
Transcribed Image Text:Aircratts Flights + Flight- Numbe tmodel t manudactren +code person Flight- + Dioration + dept-airport t aro- alr port + panengers + pilot + alrc Yott +na me +Nationality + pasmport -Numbes Airliner Congo pilot +Flyinghours Spoken lănguage panenger + Pasengensi) tlood-goodsul thum -g-ky pomengen Fleghts Air port +hame tcity t country +List-ar fighb tit-dept-flights Cangof lighto t1oad () +Cost ()
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