Q. Which of these is NOT a standard functional interface in Java?

  • (A) Runnable
  • (B) Callable
  • (C) Cloneable
  • (D) Supplier
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✅ Correct Answer: (C) Cloneable
Explanation: `Cloneable` is a marker interface and not a functional interface.

Published by Mr. Dubey ⭐ 111.42K Points at 22-Jul-2025 06:41 am in JAVA

Explanation by: Mr. Dubey
`Cloneable` is a marker interface and not a functional interface.

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