Java

What is a branch in Git?

What is the difference between LEFT JOIN and INNER JOIN?

What is the purpose of the PushbackInputStream class in Java?

Is it mandatory to specify the alt attribute in the <img> tag?

What is a list (List) in Java?

What is sharding in the context of databases?

List the main aggregate functions.

Tell us how you delved into the details of this project.

What task does the Spring framework solve?

What methods can be used to view the list of previous changes in the code version?

Can you name the main components that make up the structure of an HTTP request?

What is thread safety?

What is UML? Explain what a diagram, notation, and metamodel are in UML.

What is dependency injection in software development?

What role does polymorphism play in object-oriented programming?

How to ensure access to object data within a method using the @Transactional annotation?

Junior — Middle

СБЕР

Where and for what is the abstract modifier used?

Is it possible to create new instances of a class while a static synchronized method is executing?

Have you ever overridden the equals method yourself?

What is the World Wide Web (WWW)?