Java EE 7 Application Developer — Question 21

Which of these can be a JPA entity?

Answer options

• A. Enum type
• B. Abstract class
• C. Interface type
• D. Final class

Correct answer: A

Explanation

An Enum type can be a JPA entity because it can be mapped to a database table. In contrast, an Abstract class cannot be instantiated, an Interface type does not provide an implementation, and a Final class cannot be subclassed, making them unsuitable as JPA entities.