Java

What is meant by code coverage in testing?

In what cases can the final modifier be used in Java?

What is the value and role of the SERIALIZABLE isolation level in transactional data processing?

Middle — Middle+

СБЕР

What is StringJoiner in Java?

What are the differences between Trunk Based and Feature Branch approaches?

What is busy spin in the context of multithreaded programming?

What happens if you try to get the same bean from ApplicationContext?

Is it possible to declare a method simultaneously abstract and static?

What are the main implementations of the List interface in Java?

Have you conducted testing of database migrations or system updates?

Junior — Middle

СБЕР

What is scope in programming?

What is the difference between margin and padding?

What data structure is used in ArrayList?

Can you explain what the concept of an ordered index in databases means?

Junior — Middle

Северсталь-Ифоком

What are connection pools in databases used for?

Which operator allows intentionally throwing an exception?

What is the Callable interface in Java?

What is the difference between IoC and dependency injection?

What types of proxy servers do you know?

What is grouping in a database?