What is the primary purpose of Sealed class declaration?
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- ○ Restrict permitted subclass set
- ○ Model immutable data carriers
- ○ Test and cast together
- ○ Return value from switch
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Showing 1–12 of 12 questions
What is the primary purpose of Sealed class declaration?
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What is the primary purpose of LocalDate class usage?
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What is the primary purpose of ExecutorService task submission?
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What is the primary purpose of BufferedReader class usage?
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What is the primary purpose of Stream map operation?
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Which two statements about Record class declaration are true? (Choose two.)
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What is the primary purpose of Module descriptor file?
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Which two statements about DateTimeFormatter pattern usage are true? (Choose two.)
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Which two statements about Callable interface usage are true? (Choose two.)
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CORRECT TEXT
______ is used to restrict permitted subclass set.
Answer is in the explanation below.
DRAG DROP
Match each OOP feature to its description.
Items to match: Sealed class, Record class, Text block, Default method.

Answer is in the explanation below.
DRAG DROP
Match each API to its purpose.
Items to match: LocalDate class, Period class, DateTimeFormatter class, StringBuilder class.

Answer is in the explanation below.