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75 interview questionsfor developers (2026)

Test your developer skills before an interview with 75 corrected questions on 80+ topics. Beginner, Intermediate or Expert level.

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75 questions
Medium
18 votes3069 runs2 comments

A bean with a `session` scope is injected into a bean with a` singleton` scope. What happens when the application starts?

Back-end developer
spring
scope
Anonymous authorat Dec 21, 2021
Medium
17 votes3027 runs0 comment

Explain the prototype scope in Spring

Back-end developer
spring
bean
Anonymous authorat Dec 21, 2021
Medium
8 votes2823 runs1 comment

Explain the `session` scope in Spring

Back-end developer
spring
scope
Anonymous authorat Dec 21, 2021
Hard
7 votes2941 runs
3 comments

What is the scope of a bean with a `request` scope?

Back-end developer
spring
bean
scope
Anonymous authorat Sep 15, 2022
Medium
6 votes2592 runs1 comment

How is PDO implemented in Spring?

Back-end developer
spring
proxy
Anonymous authorat Feb 6, 2024
Medium
6 votes2589 runs
1 comment

How does Spring match beans?

Back-end developer
spring
beans
Anonymous authorat Dec 21, 2021
Medium
5 votes2643 runs0 comment

The `@Autowired` annotation is a Spring annotation, accepts a parameter allowing to specify if a dependency is optional

Back-end developer
spring
annotations
Anonymous authorat Dec 21, 2021
Easy
4 votes2679 runs0 comment

What is the default scope of a Spring bean?

Back-end developer
spring
bean
Anonymous authorat Dec 21, 2021
Medium
4 votes2599 runs0 comment

A bean with a singleton scope must be thread safe

Back-end developer
spring
singleton
Anonymous authorat Dec 21, 2021
Medium
4 votes2218 runs
1 comment

How to create a test class that calls on JUnit 5 and needs the Spring context

Back-end developer
junit
spring
Anonymous authorat Dec 21, 2021
Easy
3 votes472 runs0 comment

Advantages of using the `RestTemplate` utility

Back-end developer
resttemplate
http
Anonymous authorat Dec 21, 2021
Easy
2 votes2650 runs0 comment

A spring bean can have several scopes

Back-end developer
spring
bean
Anonymous authorat Dec 21, 2021
Easy
2 votes2624 runs
2 comments

How to use the @Inject annotation in Spring

Back-end developer
spring
annotations
Anonymous authorat Dec 21, 2021
Easy
2 votes2580 runs2 comments

How to inject a primary bean in Spring

Back-end developer
spring
dependency injection
primary
Anonymous authorat Dec 21, 2021
Medium
2 votes1779 runs
1 comment

How to handle errors in a REST call in Spring

Back-end developer
spring
rest
exception
Anonymous authorat Dec 21, 2021
Easy
2 votes949 runs0 comment

How to access the `content-type` header of an HTTP request in Spring

Back-end developer
spring
headers
Anonymous authorat Dec 21, 2021
Easy
2 votes824 runs0 comment

Inject a list of spring beans implementing the same interface

Back-end developer
spring
list
Anonymous authorat Dec 21, 2021
Medium
2 votes202 runs0 comment

What is the Reactor library class for testing a reactive stream

Back-end developer
testing
reactor
Anonymous authorat Dec 21, 2021
Medium
1 vote2675 runs
1 comment

Spring context

Back-end developer
spring
bean
Anonymous authorat Dec 21, 2021
Easy
1 vote2504 runs1 comment

Spring boot embeds an application server by default.

Back-end developer
spring boot
application server
Anonymous authorat Dec 21, 2021