Java

What is the main role of the Service component in a Spring application architecture?

What difficulties may arise when using reflection mechanism in programming?

What is the worst-case scenario of using HashMap?

How does a HashMap data structure behave if all keys produce the same hash code?

Can you list different ways to implement the List data structure in popular programming languages?

What are the main difficulties faced when using JPA in projects?

Can you explain the concept of a service within Spring and how it is used inside an application?

What are the main functions of the Controller component within the Spring Framework?

Have you had experience with Java Database Connectivity (JDBC)?

Junior — Middle

Red CollarSberDevicesСБЕР Страхование+3

In which data structure is inserting an element in the middle faster: ArrayList or LinkedList?

Junior — Middle

СБЕРIT OneRed Collar

Is it possible to use objects whose values can change as keys in a hash table?

What are the access levels in Java and how are they used?

Can you tell me about the key characteristics of objects in object-oriented programming?

Could you list and describe the different scopes used for beans in Spring?

When accessing an element by index, which data structure provides a faster operation: ArrayList or LinkedList?

What is the difference between Service, Controller, and Repository layers in Spring architecture?

Can you explain how automatic garbage collection is implemented in managed programming languages?

Junior — Middle

СБЕРDatanomikaRed Collar

What is the role of the stack in the Java Virtual Machine and what is it used for?

Have you used the Repository pattern when working with databases within the Spring Framework?

How to implement rotating array elements by a specified number of positions?