What does the SELECT operator in SQL generally look like?
Senior
189
Java
14639
265
Have you ever written custom annotations or performed class scanning?
Senior
189
How is data volume reduction in Kafka achieved to improve efficiency?
Middle — Middle+
189
How is parameter passing performed in SQL queries?
Junior — Middle
189
How do you differentiate between mid-level and senior roles?
Senior
189
189
Do you have any questions about the project we worked on?
Junior — Middle
189
Where in memory are primitive data types stored in Java?
Junior — Middle
189
How can a database be optimized?
Senior
189
For performing a large number of insertions in the middle of a collection, is it preferable to use ArrayList or LinkedList?
Junior — Middle
189
What are the differences between the HTTP methods GET, POST, and PUT in terms of their usage and behavior?
Junior — Middle
189
How does the memory separation mechanism work in the JVM in the context of object lifecycle management?
Junior — Middle
189
Why use Spring WebFlux instead of Spring MVC? What are the advantages of reactive approach?
Senior
189
/ ** * Write a class "ParkingLot" (no competition or anything else) * 1. The size (capacity) is set in the constructor. There are two methods: * - boolean enter() - Car entry, returns false if the parking lot is full. * - void exit() - Car exit. * /
Senior
188
Could you explain what is meant by a user interface (UI)?
Junior — Middle
188
What is the component called that tracks and reacts to data changes?
Junior — Middle
188
Can Throwable be considered an exception that must be handled or declared?
Junior — Middle
188
How to ensure that multiple different consumer systems receive the same message from Kafka?
Senior
188
What happens when findById is called twice with the same ID within a single Hibernate session (first-level cache)?
Senior
188
What types of indexes are there?
Senior
188