Which of the following is the correct syntax to define a Spring Data JPA repository interface for an entity named Product with primary key type Long?

easy📝 Syntax Q3 of 15

Spring Boot - Docker and Deployment

Which of the following is the correct syntax to define a Spring Data JPA repository interface for an entity named Product with primary key type Long?

Apublic interface ProductRepository extends CrudRepository<Product> {}

Bpublic class ProductRepository implements JpaRepository<Product, Long> {}

Cpublic interface ProductRepository extends JpaRepository<Product, Long> {}

Dpublic interface ProductRepository extends JpaRepository<Long, Product> {}

Step-by-Step Solution

Solution:

Step 1: Recall correct interface extension
Spring Data JPA repositories are interfaces extending JpaRepository.
Step 2: Check type order and interface usage
public interface ProductRepository extends JpaRepository {} correctly uses interface, correct generic order, and empty body.
Final Answer:
public interface ProductRepository extends JpaRepository {} -> Option C
Quick Check:
JpaRepository syntax = public interface ProductRepository extends JpaRepository {} [OK]

Quick Trick: JpaRepository is interface syntax [OK]

Common Mistakes:

Using class instead of interface
Swapping generic parameters order
Omitting ID type in generics

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More Spring Boot Quizzes

Which of the following is the correct syntax to define a Spring Data JPA repository interface for an entity named Product with primary key type Long?

Step 1: Recall correct interface extension

Step 2: Check type order and interface usage

Final Answer:

Quick Check:

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