Java

Which classes in Java are not subclasses of the Object class?

What is the main purpose of using version control for APIs?

How can automatic bean creation be configured in Spring?

Have you implemented a full state machine or something else?

What does the hashCode method return in Java?

Can you explain the DAO concept in Spring and its role in application architecture?

What technologies and tools in the Java domain have you used in your projects?

How do you react and what do you do if colleagues express criticism about your technical solution?

Have you used the Gradle build system in your projects?

Have you had experience working with the MDC mechanism?

Junior — Middle

СБЕР

What types of branch merging exist in version control systems?

Are there traces of JVM work left for subsequent analysis in case of application failure?

Explain what the RecursiveTask class is in Java's parallel computing?

How to determine which segment or category your data belongs to?

How have you used the GitFlow model for branch management in your projects?

Junior — Middle

Совкомбанк

Is it possible to build a Docker image without using the FROM directive?

Junior — Middle

СБЕР

Is it possible to ensure complete execution of a string considering exception handling and without it?

What is the role of the join() method in the Thread class and why is it used in multithreaded programming?

Have you ever worked in a field related to trading operations at your previous job?

Junior — Middle

СБЕР

How is the mechanism of Optimistic Locking implemented and how does it fundamentally differ from other types of locking?

Junior — Middle

Aston