Java

How can you extend the functionality of a class that is forbidden to modify by adding a data list to it?

Junior — Middle

СБЕР

What is the role of the HAVING operator in working with groupings and data aggregation?

Junior — Middle

ОТП БанкСБЕР

What are the main stages a task goes through from the moment of receiving the assignment from the client to the release of the finished product?

Junior — Middle

Aston

What are the advantages and disadvantages associated with automatic conversion of primitive types to objects and vice versa?

How is AtomicInteger implemented in Java?

Senior

IT One

What signs indicate token security?

Can you explain what Scope Beans are in the context of Spring and what makes them special?

When is it recommended to use the @Bean annotation in Spring framework?

Why is it sometimes necessary to edit XML configuration without changing the original Java code?

Is it possible to create an array using a constructor in a programming language?

What is the base class that serves as the ancestor for all other classes in object-oriented programming?

What methods can be used to prevent the creation of unnecessary objects when performing string concatenation operations?

Which annotation is used for registering a Bean in the Spring context during application initialization?

Junior — Middle

Иннотех

How did you pursue your goals when choosing a career in Backend development?

What is the reason behind a linked list containing pointers to the first and last elements?

What methods can be used to handle situations where a microservice crashes when reading data from Kafka?

Middle — Middle+

Aston

Why is the @Autowired annotation no longer required in Spring?

How can you determine which fields or conditions require creating indexes for optimizing large database queries?

Junior — Middle

Aston

What is the minimum number of reference fields an object can have in memory?

Have you had experience using profiling tools on production systems?