Java

Have you used the LinkedList data structure in your projects?

Junior — Middle

СБЕР

Can a class containing only abstract methods and no implementations be replaced with an interface?

Is it meaningful to define a constructor for a servlet, and what is the best way to initialize data?

What is the feature of dependency injection?

Why is it important in programming to use a variety of sorting algorithms, not just QuickSort?

Explain the differences between HashMap and HashSet data structures.

Junior — Middle

Astonайтеко

What mode or work scheme was used in your previous project?

What do you think about checked exceptions in Java?

Can you explain the concept of Embedded entities within the Spring Framework?

What unchecked exceptions exist in Java?

Have you configured the second-level cache mechanism in Hibernate?

Can you name the protocols used in application layer network applications?

Junior — Middle

СБЕР

Can you name the main categories of response codes used in communication protocols?

Is an object proxy passed as an argument when creating its instance?

Junior — Middle

Aston

Explain the exception hierarchy structure in programming languages.

What collection value is at the top of the storage hierarchy?

Junior — Middle

Банк Россия

How to distinguish business logic from functional logic in software?

Implement a CompositeIterator using generics that combines two iterators of the same type.

Middle

СБЕР

What is the difference between the annotations Repository, Component, Controller, and Service in Spring?

How does HashMap work: buckets, hash function, collisions, LinkedList, and red-black tree inside?