Java

Explain the mechanism of the linked hash table LinkedHashMap and its features.

Can you explain what is meant by 'monitor' in programming?

What is the role of the hashCode method in working with collections and hash data structures?

Junior — Middle

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What are the main differences between the CrudRepository and JpaRepository interfaces in Spring Data?

Can you explain the principle of caching in the Hibernate framework and how it affects application performance?

Explain the working mechanism of the binary search algorithm and how it is performed in practice.

What is the purpose of using the equals() method in programming?

For what tasks is the CrudRepository interface intended in database work?

Explain the purpose of the distinct() method and in what cases it is used when working with collections.

What are the potential dangers associated with concurrent modification and reading of a static int variable from different threads?

Explain the concept of shallow copying an object and its features.

For which objects in programming is the synchronization mechanism via monitor available?

What object methods are applicable for implementing concurrent task execution?

How to explain in simple words to a child what you do in your position?

Can you explain the distinctive features of the TreeMap data structure?

Can you explain the mechanism of optimistic locking in data management systems?

What methods do you know for saving object data when restarting the application?

What methods can be used to eliminate duplicate elements in a list?

Do you regularly engage in physical activity or sports?

How is the sequence of elements organized inside a TreeMap?

Junior — Middle

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