They asked some basic concepts likes ops and multithradong collection and exception and in second they asked advance concept like spring, sprinboot.
Jr Java Developer Interview Questions
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What does the Main class inherit from?
What is Spring Boot? How does it simplify the development of Java applications? Answer: Spring Boot is a framework that simplifies the development of Java-based applications by providing pre-configured setups and conventions. It eliminates the need for manual configuration and boilerplate code, allowing developers to quickly set up and deploy production-ready applications with minimal effort. Can you explain the concept of microservices architecture? How does it differ from monolithic architecture? Answer: Microservices architecture is an architectural style that structures an application as a collection of loosely coupled services, each responsible for performing a specific business function. These services are independently deployable and scalable. In contrast, monolithic architecture is a traditional approach where all components of the application are tightly integrated into a single codebase, making it difficult to scale and maintain.
Describe at least 5 differences between abstract classes and interfaces.
General java language + oop
Java Core, Spring Boot, Hibernate, Spring Security
It was sometime ago but it had to do with designing a sorting algorithm.
concept of oops? frameworks? about project?
What is a constructor?
What is garbage collection?
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