Java

How many new objects are created when adding a new element to HashMap?

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

By what mechanisms does NIO provide non-blocking access to resources?

What is the World Wide Web (WWW)?

What is sharding in the context of databases?

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

What happens during the compilation process known as Building, and what does it lead to?

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

What is the main role of the Java Virtual Machine in executing Java programs?

What is thread safety?

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

How to properly close a database connection?

What are immutable objects?

What is dependency injection in software development?

Where is the @Bean annotation used?

What is the Dispatcher Servlet?

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

Junior — Middle

СБЕР

Explain the working principle of a push broker and its role in message exchange systems.

Junior — Middle

Иннотех

How do you implement automation of integration and deployment processes in your project?

How do different types of Scope in Spring beans differ?

Junior — Middle

Иннотех