Question

 Which of the following is true about the Optional class in Java 8?

a) It is used to represent a value that may or may not be present.

b) It is used to represent an empty collection.

c) It is used to represent a nullable object.

d) It is used to represent a default value.

Answer 1

Answer: a) It is used to represent a value that may or may not be present.

Explanation: The Optional class is used to represent a value that may or may not be present, and provides methods for working with this value.