Method Reference MCQs with answers Page - 1

You will find multiple-choice questions (MCQs) related to #Method Reference here. Go through these questions to prepare effectively for your upcoming exams and interviews.

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Q. Which operator is used for method references in Java?

  • (A) ->
  • (B) ::
  • (C) =>
  • (D) %%

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Q. Which type of method reference is demonstrated by `String::toUpperCase`?

  • (A) Static method reference
  • (B) Instance method reference of an arbitrary object
  • (C) Constructor reference
  • (D) Instance method reference of a specific object

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Q. What is the purpose of a method reference in Java?

  • (A) To create anonymous classes
  • (B) To reference methods without executing them
  • (C) To invoke methods immediately
  • (D) To define interfaces

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Q. Which method reference type is demonstrated by `System.out::println`?

  • (A) Static method reference
  • (B) Instance method reference of a specific object
  • (C) Constructor reference
  • (D) Instance method of an arbitrary object

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Q. What does `ClassName::new` represent in Java?

  • (A) Static method reference
  • (B) Instance method reference
  • (C) Constructor reference
  • (D) Field reference

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Q. What type of method reference is `Math::abs`?

  • (A) Static method reference
  • (B) Instance method reference of an arbitrary object
  • (C) Constructor reference
  • (D) Instance method of a specific object

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Q. What does the method reference `this::methodName` refer to?

  • (A) Static method
  • (B) Method of current object
  • (C) Constructor
  • (D) Superclass method

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Q. Which functional interface is often used with method references that return a value?

  • (A) Runnable
  • (B) Supplier
  • (C) Consumer
  • (D) Predicate

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Q. Which method reference matches a lambda expression like `s -> s.toLowerCase()`?

  • (A) String::toUpperCase
  • (B) String::toLowerCase
  • (C) Object::toString
  • (D) String::trim

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Q. Which type of method reference is represented by `Object::toString`?

  • (A) Static method reference
  • (B) Instance method reference of an arbitrary object
  • (C) Instance method of specific object
  • (D) Constructor reference

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