Java

How to convert HashSet to ArrayList in one line?

How and when does the increase in the number of buckets in HashMap occur?

Can you explain what Testcontainers are and what they are used for in application testing?

Junior — Middle

Aston

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

What makes lambda expressions work and what happens 'under the hood'?

What is needed for Spring MVC to work?

Do you perform unit testing for your code?

Junior — Middle

СБЕР

Have you used the SELECT statement in data update operations (UPDATE)?

Junior — Middle

Т-Банк

Was a user authorization system used in your previous project?

Junior — Middle

СБЕР

What is considered the main building block in the Spring Framework architecture?

How can you extract only unique values from a column of names in an SQL query?

Can you list different types of packages based on their functionality?

Can you explain what objectives are pursued when performing this work?

Can you name some design patterns besides Singleton?

How can you convert an ArrayList to a HashSet in one line?

What is ApplicationContext in Spring?

Which class is used for working with file system elements?

Why is the use of hash tables considered outdated or undesirable in modern development?

What methods and tools can be used to diagnose the causes of stopping or slowing down a Java server?

Can the PRIMARY KEY be considered as a constraint consisting of multiple columns?