Have you faced tasks related to the role of a DevOps engineer?
Junior — Middle
258
Java
14686
265
What type of command do you prefer to work with and why?
Junior — Middle
258
Explain the mechanism of the TreeMap data structure and how it implements sorting of elements.
258
What is the use of flatMap in the context of Optional, and what is its main idea?
Junior — Middle
258
What technologies and tools were used in your last project?
Junior — Middle
258
What to do if there is a conflict when using multiple libraries in a Spring Boot project and the system requires removing one of them?
Junior — Middle
258
Tell about the hierarchy of collections in Java.
Senior
258
How to access a blocking data source (e.g., database) in a reactive pipeline?
Senior
258
What is the principle of Barbara Liskov (LSP)? Can you give an example of a violation?
Senior
258
How have you interacted with analysts to resolve arising issues?
Junior — Middle
257
What are the differences between the Runnable and Callable interfaces in Java?
Junior — Middle
257
What value can the data type int take in size?
Junior — Middle
257
Explain what the volatile keyword means in programming and what it is used for.
Junior — Middle
257
Is it possible to build a Docker image without using the FROM directive?
Junior — Middle
257
What components are included in the Spring Boot Starter?
Junior — Middle
257
What aspects do you consider when creating indexes for database columns?
Junior — Middle
257
Can Error be considered an unchecked exception in Java?
Junior — Middle
257
What is the role and purpose of the volatile keyword in programming language?
Junior — Middle
257
Is the object-oriented programming principle fundamental to using the Spring Framework?
Junior — Middle
257
Can two elements with the same key exist simultaneously in a HashMap collection?
Junior — Middle
256