Java

What is the difference between the annotations @RequestMapping and @PutMapping in Spring?

Is it possible to implement an interface through another interface?

At what stages of system development or maintenance are anomalies that occur between transactions identified and eliminated?

What data structure is used in ArrayList?

What is the advantage of the Builder design pattern compared to a regular constructor?

What are channels in the context of Java?

What is the idea of multithreading?

What tasks can be solved using the JOIN operation in SQL?

Can you tell about the most challenging task you successfully completed within a project?

Junior — Middle

СБЕР Корпус

What is XML?

What is the difference between object-oriented programming and functional programming?

Can the use of abstract classes be considered outdated in modern programming?

What plugins can be installed when creating a virtual machine?

What authentication and authorization approach is implemented in Spring Security in your project?

How are hashCode() and equals() methods implemented in the Object class?

How to create a singleton bean when starting a Spring application?

Who exactly contacted you from the HR department?

Junior — Middle

СБЕР

What types of databases are you familiar with?

What is the role of the Object class in Java?

Can keys in a Map repeat?