Java

What are the advantages of using a synchronized block compared to a synchronized method for ensuring thread safety?

Why is there no repetition of elements in the Set data structure?

Can you give an example where multiple different error types are caught in a single exception handling block?

Could you tell about projects or tasks you performed during your training at SQLAcademy?

What actions would you take if database performance degrades?

Junior — Middle

Альфа-Банк

What groups of tags does the JSTL library consist of?

What Content-Type types are permissible when sending HTTP requests?

Что такое String, StringBuilder и StringBuffer в Java?

Are you ready to start working as soon as possible?

How would you organize the interaction of multiple services?

How is request path tracking implemented in the system?

Junior — Middle

Альфа-Банк

Can you explain what the load factor metric means in the HashMap data structure?

Is it possible to manage transactions through code within the Spring Framework?

Junior — Middle

СБЕР

What programming languages, besides Java, do you know that use bytecode?

For what purposes is the UNION operator used in SQL and how does it affect the query execution result?

Junior — Middle

СБЕР

What is the difference between a functional approach and an object-oriented approach?

What is the role of the offset parameter in Kafka and why is it important for message processing?

Explain how multiple string values can be concatenated in programming.

Is it permissible for one of the columns in a composite unique key to contain a NULL value?

Junior — Middle

СБЕР

How does Spring implement interaction with objects without using additional intermediate layers?