Java

Do you perform unit testing for your code?

Junior — Middle

СБЕР

Have you used the SELECT statement in data update operations (UPDATE)?

Junior — Middle

Т-Банк

What is considered the main building block in the Spring Framework architecture?

Can you list different types of packages based on their functionality?

Can you explain what objectives are pursued when performing this work?

What is ApplicationContext in Spring?

Which class is used for working with file system elements?

What is the problem with checked exceptions in Java?

Why is the use of hash tables considered outdated or undesirable in modern development?

What is the difference between a binary tree data structure and a B-Tree?

Junior — Middle

Aston

What is the main purpose of using the Factory Method pattern in software design?

Which class in Java is responsible for implementing a dynamic array?

Compare the Iterator and ListIterator interfaces. What are their main differences and when is it better to use each?

What methods can be used to reduce the system's response time to requests?

Can you list the main categories of exceptions in Java?

Can you list the main types of relational databases that you know?

Junior — Middle

IT One

Is a primary key unique, or can it be duplicated?

How to explain to a client the process of breaking down a monolithic system into microservices?

What is the main purpose of the flatMap method in data stream processing when using the Stream API?

What happens if you try to get the same bean multiple times in ApplicationContext?