Java

What is Swagger used for?

What subclasses of the InputStream class do you know and what are they used for?

How can you catch a UserNotFoundException and redirect the user to the registration page?

What are the advantages of using JDBC?

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

How do loops in Java differ?

Tell us about the SingleThreadModel interface in Java.

What features of NIO (New Input/Output) do you know?

What is the worst-case execution time of the get(key) method for a key that is not in the HashMap?

What tests do you write and how?

What components of the Spring framework have you used in your projects?

How can exceptions be handled in Java?

What will you do if an exception occurs when calling method A?

What is the JOIN operator in SQL?

How is the insertion operation's time complexity evaluated in a TreeMap data structure?

Junior — Middle

OZON

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Тетрасофт

How can you create and use functional interfaces in Java?

Junior — Middle

Aston

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

What is the purpose of using wrapper classes in programming?

What is the difference between inversion of control (IoC) and dependency injection?

What are the types of NoSQL databases?