Java

What behavior is ensured by using the volatile keyword in a programming language?

Junior — Middle

СБЕР

What are the advantages and disadvantages of using try-with-resources for automatic resource management?

Can you name the main design patterns used with the Spring Framework?

Junior — Middle

Альфа-Банк

Is it possible to extend services through horizontal scaling without significant difficulties?

How is the thread pool mechanism implemented and how does it manage task execution?

How do the main properties of ACID guarantee the integrity and reliability of transactions in a database?

What is garbage collection in Java?

How to write a custom (user-defined) exception in Java?

Can you explain what is meant by the term 'buffer' in programming and how it is used?

What is a Logger in the log4j library?

What variables can lambda expressions in Java access?

What problems can arise from not using transactions in an application?

What factors influence data access speed in SQL?

What does Maven provide when building a project?

Какой тип коллекции лучше выбрать для хранения уникальных элементов в отсортированном порядке?

In what situations is it recommended to use the CopyOnWriteArrayList data structure in a multithreaded environment?

Does the keyword volatile guarantee the order of operations in a multithreaded environment and how is it related to the Happens-before model?

Junior — Middle

OZON

How to merge two different branches in Git?

What makes integration tests less preferable for you?

Can a value in a column with a FOREIGN KEY constraint be NULL?