Lesson 49 (optional) #108
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Lesson 49 (optional) #108
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KFalcon2022
reviewed
Sep 24, 2024
| CarService carService = new CarService(initCars()); | ||
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| Car desiredCar = createCar(); | ||
| Optional<Car> foundCar = carService.findCar(desiredCar); |
KFalcon2022
reviewed
Sep 24, 2024
| String found = foundCar.map("Найдена машина:\n%s"::formatted) | ||
| .orElse("Подходящая машина не обнаружена"); | ||
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| System.out.println(found); |
Owner
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можно было впихнуть в ifPresentOrElse()
KFalcon2022
reviewed
Sep 24, 2024
| .getYear() <= 2021) | ||
| .map(Car::getOwner) | ||
| .filter(person -> !person.getProfession() | ||
| .equals("policeman")) |
Owner
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Конструкции с equals и константой/литералом зачастую лучше описывать в другом порядке:
"policeman".equals(person.getProfession())во избежание NPE на ровном месте
KFalcon2022
reviewed
Sep 24, 2024
| .getYear() <= 2021) | ||
| .map(Car::getOwner) | ||
| .filter(person -> !person.getProfession() | ||
| .equals("policeman")) |
Owner
There was a problem hiding this comment.
Конструкции с equals и константой/литералом зачастую лучше описывать в другом порядке:
"policeman".equals(person.getProfession())во избежание NPE на ровном месте
| .map(Home::getAddress) | ||
| .filter(address -> !address.contains("Рублевское шоссе")); | ||
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| String address = foundAddress.map("Найден адрес:\n%s"::formatted) |
| String address = foundAddress.map("Найден адрес:\n%s"::formatted) | ||
| .orElse("Адресс не найден"); | ||
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| System.out.println(address); |
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