What is your experience with Java and in which projects have you used it?
Junior — Middle
239
Java
14686
265
When adding an element to the end of a collection, which data structure — ArrayList or LinkedList — is faster?
Junior — Middle
239
For what reason are you considering the proposals?
Middle
239
How to achieve exactly-once at the consumer level in Kafka when saving to a database (to avoid duplicates)?
Senior
239
Does MongoDB ensure compliance with ACID transactional principles?
Junior — Middle
239
What alternatives to using copy constructors and serialization methods exist for parallelizing or cloning objects?
Junior — Middle
239
Can Throwable be considered a controllable exception type in Java?
Junior — Middle
239
Is Scope Request possible in the context of GenericApplicationContext in Spring?
Junior — Middle
239
How many participants were in the team during the launch of this project?
Junior — Middle
239
How is message passing implemented in Kafka system?
Junior — Middle
239
Have you ever overridden the hashCode method in your code?
Junior — Middle
239
How did you make changes to the database structure or data?
Junior — Middle
239
What design pattern would you apply to adapt the behavior of an object depending on the time of day?
Junior — Middle
239
What is the difference between calling the run method and using the start method when working with the Runnable interface?
Junior — Middle
239
Explain the concept of Mockito and how it is used in Java application testing.
239
Name the levels of class member visibility, starting from the least restrictive and ending with the most open.
Junior — Middle
239
What is the most effective way to implement dependency injection using beans?
Junior — Middle
239
How can you remove the dependency from the spring-boot-starter-test library in the project?
Junior — Middle
239
How to display 0 instead of NULL for departments without employees?
Senior
239
How can you create an immutable copy of a collection using the clone method?
Junior — Middle
239