Properties & Delegation interview questions

12 Properties & Delegation questions from the Kotlin bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.

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1. What is lazy delegate?

Junior
  1. A.a property initializer that computes the value on first access and caches it for later reads
  2. B.a block defining how a property's value is computed each time it is read
  3. C.a keyword allowing a non-null mutable property to be assigned after construction rather than at declaration
  4. D.the syntax that hands a property's get and set logic to a separate delegate object

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2. Which term means: "a property initializer that computes the value on first access and caches it for later reads"?

Junior
  1. A.by keyword
  2. B.lateinit modifier
  3. C.lazy delegate
  4. D.Custom getter

Answer + AI explanation with Pro

3. Which statement is correct?

Junior
  1. A.lazy delegate — a property initializer that computes the value on first access and caches it for later reads
  2. B.lazy delegate — the syntax that hands a property's get and set logic to a separate delegate object
  3. C.lazy delegate — a keyword allowing a non-null mutable property to be assigned after construction rather than at declaration
  4. D.lazy delegate — a block defining how a property's value is computed each time it is read

Answer + AI explanation with Pro

4. What is lateinit modifier?

Junior
  1. A.a property initializer that computes the value on first access and caches it for later reads
  2. B.a keyword allowing a non-null mutable property to be assigned after construction rather than at declaration
  3. C.the syntax that hands a property's get and set logic to a separate delegate object
  4. D.a block defining how a property's value is computed each time it is read

Answer + AI explanation with Pro

5. Which term means: "a keyword allowing a non-null mutable property to be assigned after construction rather than at declaration"?

Junior
  1. A.lateinit modifier
  2. B.by keyword
  3. C.Custom getter
  4. D.lazy delegate

Answer + AI explanation with Pro

6. Which statement is correct?

Junior
  1. A.lateinit modifier — a block defining how a property's value is computed each time it is read
  2. B.lateinit modifier — a keyword allowing a non-null mutable property to be assigned after construction rather than at declaration
  3. C.lateinit modifier — the syntax that hands a property's get and set logic to a separate delegate object
  4. D.lateinit modifier — a property initializer that computes the value on first access and caches it for later reads

Answer + AI explanation with Pro

7. What is by keyword?

Mid
  1. A.the syntax that hands a property's get and set logic to a separate delegate object
  2. B.a block defining how a property's value is computed each time it is read
  3. C.a property initializer that computes the value on first access and caches it for later reads
  4. D.a keyword allowing a non-null mutable property to be assigned after construction rather than at declaration

Answer + AI explanation with Pro

8. Which term means: "the syntax that hands a property's get and set logic to a separate delegate object"?

Mid
  1. A.lateinit modifier
  2. B.Custom getter
  3. C.by keyword
  4. D.lazy delegate

Answer + AI explanation with Pro

9. Which statement is correct?

Mid
  1. A.by keyword — a property initializer that computes the value on first access and caches it for later reads
  2. B.by keyword — a keyword allowing a non-null mutable property to be assigned after construction rather than at declaration
  3. C.by keyword — the syntax that hands a property's get and set logic to a separate delegate object
  4. D.by keyword — a block defining how a property's value is computed each time it is read

Answer + AI explanation with Pro

10. What is Custom getter?

Mid
  1. A.a property initializer that computes the value on first access and caches it for later reads
  2. B.a keyword allowing a non-null mutable property to be assigned after construction rather than at declaration
  3. C.a block defining how a property's value is computed each time it is read
  4. D.the syntax that hands a property's get and set logic to a separate delegate object

Answer + AI explanation with Pro

11. Which term means: "a block defining how a property's value is computed each time it is read"?

Mid
  1. A.lazy delegate
  2. B.lateinit modifier
  3. C.Custom getter
  4. D.by keyword

Answer + AI explanation with Pro

12. Which statement is correct?

Mid
  1. A.Custom getter — a keyword allowing a non-null mutable property to be assigned after construction rather than at declaration
  2. B.Custom getter — a block defining how a property's value is computed each time it is read
  3. C.Custom getter — a property initializer that computes the value on first access and caches it for later reads
  4. D.Custom getter — the syntax that hands a property's get and set logic to a separate delegate object

Answer + AI explanation with Pro

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