Java

Can you explain what GraalVM is and what it is used for?

What is the asymptotic complexity of the brute-force algorithm for all options?

What methods can be used to create a collection that is safe for use in a multithreaded environment?

What other methods does Iterator have besides hasNext, next, and remove?

Is it possible to set a constraint on a database column to allow only non-null values?

Can multiple Spring configurations be used in a single application?

Are you ready to start the interview at this moment?

Junior — Middle

СБЕР Тех

How can a new context be initiated in the system?

Can you explain what subclasses in Java are and how they are used?

What are the implications, advantages, and disadvantages of removing data types in programming?

Does MongoDB ensure compliance with ACID transactional principles?

Junior — Middle

СБЕР

Can you explain what the process of data deserialization means?

What is the problem with this solution (commit after calling an external REST service)?

Middle

ООО ИЦ Ай-теко

If two objects of different classes have the same fields, will they have the same hashCode value?

What is the total experience in Java development?

What is the purpose of annotations @Component, @Repository, and @Service in Spring, and how do they differ?

How do you assess your knowledge and experience with the Spring Framework?

Junior — Middle

ОТП Банк

What are the distinctive features of a linked list and how does it differ from other data structures?

How does Spring determine which component to inject as a dependency?

Is it possible to define a table in a database without specifying a primary key?