What is the use of @OneToOne annotation in JPA?

MCQ: What is the use of @OneToOne annotation in JPA?

a) To define a one-to-one relationship between two entities
b) To configure application properties
c) To create scheduled tasks
d) To define RESTful endpoints

Answer:

a) To define a one-to-one relationship between two entities

Explanation:

The @OneToOne annotation in JPA is used to define a one-to-one relationship between two entities. It indicates that one entity is associated with another entity having a one-to-one relationship.

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