Consider the following pseudocode that returns an Optional value from a method:
if there is a result // line 1
return the result // line 2
else
return an empty result // line 3
Assume that the variable result represents an object reference to the result to be returned as Optional.Replace line 3 with the Java code to return an empty result.
A)return Optional.empty();
B)return Optional.empty(result);
C)return result.empty();
D)return null;

Question

Quizplus · Accepted Answer

Option A correctly returns an empty optional using the static method Optional.empty(). Option B is not valid syntax for creating an empty optional, as Optional.empty() takes no arguments. Option C is not a valid way to create an empty optional, as it implies that the object reference itself has an empty method, rather than the Optional class. Option D returns null, which is not an Optional value.

Consider the Following Pseudocode That Returns an Optional Value from a Method