Java

What methods can be used to handle uncaught exceptions in a program?

Explain what ReentrantLock is and how it differs from standard synchronization mechanisms in Java.

Junior — Middle

ВТБ

How can sending emails using ExecutorService for parallel processing be implemented?

Have you used testing in your Spring-based project?

Will a native SQL query be executed within a related table or association?

Junior — Middle

Газпромбанк

Do you use the equals method for comparing objects when adding them to a bucket-based data structure?

Junior — Middle

СБЕР

What types of relationships exist in a class diagram?

When does the stream execution start in Java?

Do you have skills in multithreading in programming?

Why does using StringBuilder not create redundant string objects in memory?

How to optimize a slow SQL query? What tools to use?

What methods can be used to avoid writing regular access methods to object fields?

Junior — Middle

Транснефть

What stage serves as the starting point in exception handling in code?

How is the difficulty of accessing an element by index in an ArrayList determined?

Junior — Middle

OZON

Can you tell about the key features of the object and its capabilities?

What are the differences in syntax and features when working with the main data types in Java and Python?

Junior — Middle

СБЕР

What types of indexes exist in SQL database management systems?

Junior — Middle

Т-БанкAstonБАРС групп+1

What is the role and purpose of the @PostConstruct annotation in Spring, and in what situations is it used?

Can you explain what the term 'mutable' means in programming?

What are the advantages and disadvantages of using ENUM in a database?