Java

How do lambda expressions implement and interact with functional interfaces in programming languages?

Junior — Middle

СБЕР

Can you give an example of violating the Liskov principle when using standard libraries?

Junior — Middle

Aston

What are the key characteristics of interfaces in programming?

Junior — Middle

Северсталь-Ифоком

What are the advantages and disadvantages of using PreparedStatement compared to regular SQL queries?

What methods are used to implement distributed transaction management in systems?

Middle — Middle+

Иннотех

Could you explain what a JavaBean is in the context of Java development?

Is it acceptable to use a more informal address, like 'you', in work communication?

Can you name the main protocols used for data exchange between web services?

What is the relationship between JavaScript and Java?

Can you explain how the JIT compiler works and why it is important for application performance?

What distinguishes the data structure HashTable from HashMap and what are their main differences?

Junior — Middle

Газпромбанк

Can you explain what ZooKeeper is and what it is used for in distributed systems?

What is the role of stereotype annotations in the Spring framework and why are they used?

What is the difference between development approaches using the main branch and feature branches?

What is lazy loading in JPA and what are its advantages and disadvantages?

Junior — Middle

СБЕР

What are the restrictions on keys in a database?

Have you worked with systems similar to Kafka?

Junior — Middle

Газпромбанк

What is the difference between get() and load() methods in Hibernate when retrieving data from a database?

What is the purpose of the MIN function in SQL and how is it used to obtain the minimum value in data?

Junior — Middle

Aston

How is the speed of operations evaluated when using HashSet in terms of time complexity?