Java

In what ways can you iterate over elements of a collection in programming?

What methods do you know in the Object class?

In which register is it recommended to write HTML code?

How did you come to choose this profession and what led you to this career path?

What key points should be focused on before an interview?

What happens if you try to get the same bean in ApplicationContext?

How can issues with data modification inside a hash table be avoided?

Junior — Middle

ОТП Банк

Have you ever tried using the append method?

What are access modifiers used for?

What methods can guarantee that a booking operation in REST API will not change the system state on repeated calls?

Could you explain what the @PreDestroy annotation means in Java and how it is used?

What steps are needed to initialize a Singleton component after defining the class?

How do you improve the performance of SQL queries?

Can non-static methods overload static methods?

How is the trace identifier transmitted for request tracking?

Junior — Middle

Альфа-Банк

How do objects get into the String Pool?

What are the differences between LinkedHashSet and HashSet data structures in Java?

Explain how the synchronized keyword works in Java and its purpose when working with threads.

Can keys in a Map repeat?

Can you name popular messaging systems used in microservice architecture?