Java

What methods can be used to transition an entity from one state to another in Hibernate?

What is the purpose of the 'final' keyword in Java (for fields, classes)?.

Do you have experience with Hazelcast?

The left table has 5 records, the right table has 10 records. The ON condition is 1=1. How many records are in the result for LEFT JOIN and INNER JOIN?

Tell about your journey in Java development over the last 3-5 years. What kind of projects, architecture, stack, teams? Mention the evolution with AI application.

Annotated method with @PostConstruct and @Transactional. What will happen first?

How was early problem detection organized: through feature branches, regression, or another process?

Senior

СБЕР

Ты говорил про идемпотентную отправку или Exactly-Once в Kafka. Чем из них пользовался?

What tasks do you enjoy solving?

Middle

ООО ИЦ Ай-теко

What does stateless mean in the context of REST?

What index should be used for searching by varchar array in PostgreSQL? What are BRIN and Bloom indexes?

Senior

СБЕР

[имя] спросил: Как снять heap dump с Java-процесса в Kubernetes? Опиши по шагам в bash-консоли.

What tests do you write? What frameworks do you use?

Middle+

МТС

Можно ли безопасно удалять элементы из списка через Iterator.remove() в цикле while?

How much have you worked with architecture? Have you had to make architectural decisions on your own in a previous project?

Tell me about the project in Lepton. What kind of project is it?

Tell me about testing. Do you participate in automated tests or manual testing?

Senior

СБЕР

SELECT COUNT(DISTINCT employee_number) = COUNT(*) FROM employees

Middle+

Иннотех

What will happen if you call an @Async method from a non-annotated method within the same bean?

Senior

СБЕР

What message brokers have you worked with? Explain how Kafka works.

Intern

СБЕР Тех