Java

Which memory area — stack or heap — has greater capacity?

In what cases is it necessary to use the Bean annotation in a project?

Explain what undesirable data reading within a transaction is and how it differs from other types of reads.

Explain what the StringBuffer class is and how it is used in Java for working with strings.

In which element of the HashMap collection is the hashCode method used — for the key or for the value?

How is the data structure of HashMap organized and how does it ensure fast access to elements?

Have you had experience working with JKS key storage format?

When exactly during the execution process of Hibernate does the data of a field get loaded from the database?

In what situations can an OutOfMemoryError occur in Java?

What are the consequences of key collisions in a HashMap data structure?

What mechanisms in Java ensure the ability to write code that works on different operating systems?

What happens in a program if the stack memory is exhausted and an exception occurs?

What information is stored in the stack data structure and how is it organized?

Junior — Middle

РЖДайтеко

How is the efficiency of key-based element search in a HashSet data structure evaluated?

Is it possible to use a derived class instead of a base class in the code?

What main difficulties can be encountered when using pure SQL?

What is the difference between intermediate operators and terminal operators in data streams or sequences?

Junior — Middle

IT Oneайтеко

How does the garbage collector determine that an object is no longer used and can be removed from memory?

In what situations have you used functional interfaces in your projects?

Explain the concept of cascading in the context of web development or programming.