Java

What is the Map interface in Java?

Provide an example of a relational and a non-relational database.

In which segment of JVM memory are created objects placed?

Tell about the structure of the Collection framework in Java.

In what situations is it preferable to use synchronized methods in programming?

Can you explain what is meant by 'instant' in programming?

Junior — Middle

СБЕР

Is it possible to efficiently extract the first element from a LinkedList data structure?

What are the time costs for performing maximum element search operations when using ArrayList, if elements are added infrequently?

Junior — Middle

Т-Банк

What plugins can be installed when creating a virtual machine?

What is the purpose of implementing a default method inside an interface in Java?

Can a string be considered a memory-intensive data type?

What is the difference between dependencyManagement and dependencies blocks in a project configuration file?

Junior — Middle

СБЕР

In what type of trees are indexes usually implemented for fast data search?

Junior — Middle

Aston

What are the purposes of functional interfaces BinaryOperator<T>, DoubleBinaryOperator, IntBinaryOperator, and LongBinaryOperator?

Why is there no need to specify the @Autowired annotation in modern Spring?

What is DTD (Document Type Definition) and what is its role in XML documents?

What are the types of input-output streams in Java?

How would you organize interaction between multiple services?

What is the difference between an abstract class and a regular class, and how can it be applied in programming?

Junior — Middle

Северсталь-Ифоком

Where in Spring MVC does the search for controllers for handling incoming requests occur?