Java

When should you use an abstract class and when an interface?

What is the range of valid values for the short data type in Java?

What does the collect method do in Java?

Which collection in Java implements the discipline of Last In, First Out (LIFO)?

Is it mandatory to specify the alt attribute in the <img> tag?

What processes are launched at the start of a Spring Boot application?

Can an interface containing only one method be considered a functional interface according to Java standards?

How should exceptional situations in code be handled?

What methods can be used to view the list of previous changes in the code version?

Can you list the main data structures implemented through collections in the standard library?

Junior — Middle

AstonSberDevices

How can you create a servlet in Spring?

Why is it preferable to implement dependency injection through the constructor in Spring?

How to check if a thread holds a monitor of a specific resource?

What is the purpose of implementing a default method inside an interface in Java?

Is it possible to run a Java application with only a JRE?

What is the difference between LEFT JOIN and INNER JOIN?

How would you check for duplicates in an array of one million numbers?

What programming languages exist for the JVM platform?

What is the World Wide Web (WWW)?

Has the same URL been used to configure the Spring DataSource source?

Junior — Middle

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