Java

What actions does the system take when an exceptional situation occurs within a transaction

Why are ACID properties necessary when working with database transactions?

Can you explain the essence of the singleton pattern in the context of Spring and its application?

Can you explain what the hashCode method in Java is and how it is used?

Junior — Middle

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What are the main difficulties and disadvantages associated with inheritance in Java?

How can you calculate the average value of a column in an SQL query?

Share your experience using Docker Compose in automation and container management.

What methods can be used to obtain a new instance of a component configured with the prototype pattern in Spring or similar frameworks?

What data structures are used for quick addition of elements to the end of a collection?

Can you explain what happens when hash codes of different objects match in the hashCode() method?

Which of the two storage options for elements is preferable for fast traversal: ArrayList or LinkedList?

How to distinguish exceptions that need to be explicitly handled from those that can be omitted in the code?

Could you explain what checked exceptions are in a programming language?

Explain how a hash table works and when it is used.

Share your experience of implementing the Pipeline pattern in projects.

How are the equals and hashCode methods related in Java, and why is it important to implement them correctly together?

Junior — Middle

ITFB GroupAstonEffective Mobile+11

What methods can be used to improve service efficiency?

What is the difference between @Controller and @RestController annotations in Spring?

Junior — Middle

SecreateИннотехГосуслуги+2

What methods are used in Spring to implement and manage transactions?

Explain the purpose and usage of the @Repository annotation in Spring.