Java

Что такое дженерики и для чего они используются?

What reactive programming libraries have you worked with?

Senior

Альфа-Банк

table student id PK name faculty_id table faculty id PK name SELECT f.name, count(*) FROM faculty f JOIN student s ON s.faculty_id = f.id GROUP BY f.id, f.name GROUP BY /*f.id,*/ f.name GROUP BY f.id/*, f.name*/

Middle+

Иннотех

Tell us about your experience using the StringBuilder class for working with strings in your projects.

What is a Saga and why is it needed?

Senior

СБЕР

create table PASS_EXPIRATION_NOTIFY_ENTITY ( ID CHARACTER VARYING(36) not null, USER_ID CHARACTER VARYING(255), REALM_ID CHARACTER VARYING(255), EXPIRATION_DATE TIMESTAMP, NOTIFY_SCHEDULED_DATE TIMESTAMP, constraint PASS_EXPIRATION_NOTIFY_ENTITY_PK primary key (ID) ); select * from PASS_EXPIRATION_NOTIFY_ENTITY where NOTIFY_SCHEDULED_DATE > now()

Senior

СБЕР

What is a feature lead, and what was your experience in this role?

Senior

Т-Банк

What are the message delivery strategies in Kafka and how are they implemented?

Senior

СБЕР

How does the mediator pattern differ from proxy?

Senior

Альфа-Банк

Откуда приходит событие в Kafka? Кто говорит, что нужно сделать начисление?

What is the reason for the inadmissibility of inheritance from the built-in string type in a programming language?

Delivery guarantees in Kafka (at-most-once, at-least-once, exactly-once) and message order

Tell us about yourself and your work experience (not repeating your resume): interesting tasks, business context, what you did personally.

Tell about a situation in the last year or two when you were most effective as a developer.

Senior

СБЕР

In what order should catch blocks be arranged (for example, FileNotFoundException and IOException)?

Senior

IT One

Write the simplest method that would throw a StackOverflowError during execution.

What happens when you make an HTTP request from a browser before receiving a response?

In what cases will the finally section not execute?

Senior

IT One

Architectural task: a deferred notifications system for bonuses (tens of millions of users)

How to ensure that a Scheduled Job runs only on one instance out of 20 in a cluster?

Middle+

Иннотех