Java

What is a ClassLoader in Java?

What properties ensure transaction compliance when working with a database within the ACID framework?

Is the Number class real or abstract?

Can you explain what is meant by errors when executing Java programs?

What Git commands do you know?

Which container is launched during the execution of tests?

How do HashMap and ConcurrentHashMap differ in Java in terms of functionality and usage in multithreaded segments?

Junior — Middle

БАРС группОТП Банк

To which constructs in Java can the static modifier be applied?

Is it possible to process multiple transactions simultaneously within one session?

What is the difference between char and varchar data types in SQL?

What does the word 'static' mean in Java?

How do you apply the open-closed principle (O) from SOLID when designing the architecture of your applications?

How to properly override the equals method in Java?

How is the access time to the first element in ArrayList determined?

How does creating an instance of the Object class determine the allocated memory space?

Junior — Middle

СБЕР Тех

Explain the expression System.out::println.

Did you receive education in Saint Petersburg?

How to implement data locking mechanisms when working with Spring Data?

Junior — Middle

Aston

Is the get() method implemented in the standard collection interface in Java?

Why are databases better than text files?