Java

What is an error in Java?

Have you applied caching mechanisms in your projects in practice?

Why should you not configure standard JSP tags in the web.xml file?

How can one familiarize oneself with information about primitive types in Java?

How is transaction isolation level management implemented in Hibernate?

SQL: how to select all duplicate values in the email column?

What types of databases are you familiar with?

What is the difference between using ExecutorService and manual thread management?

How to determine the duration of operations with a LinkedList data structure?

Junior — Middle

СБЕР

What types of classes exist in Java?

What is the difference between the annotations Repository, Component, Controller, and Service?

How can a high-load web service be optimized?

What is the purpose of the ServletRequest interface?

[Name] asked: Have you used Kotlin in projects?

Are local variables of methods part of the call stack during program execution?

How to sort a list of strings using a lambda expression?

What elements or features of the internal structure of HashMap cannot be changed after its creation?

Junior — Middle

ОТП Банк

How does the Proxy pattern work and how does it differ from regular objects?

Junior — Middle

IT One

Is it possible to establish relationships between different collections in a MongoDB database?

In what situations is it recommended to use the 'final' modifier in programming?