Spring Boot is a popular Java framework for developing standalone applications and Microservices. If you are a Java developer preparing for software engineer interviews, you can expect Java Spring Boot interview questions in coding and design rounds.
While the Spring framework is used to create Java Enterprise Edition applications, the Spring Boot framework is primarily used to create and maintain Rest Application Programming Interfaces. Being familiar with popular Java framework tools used to build a wide range of applications is essential for passing technical interviews at FAANG+ companies as a Java developer.
In this article, we’ll look at some popular Java Spring Boot interview questions to help you prepare for your upcoming developer interview.
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Let’s go ahead and look at some popular Java Spring Boot interview questions to help you get an idea of what to expect at software engineering interviews.
Here’s what we’ll cover:
In this section, we’ll look at some popular Java Spring Boot Interview Questions and Answers.
The main advantages of Spring Boot include:
This is one of the most popular Java Spring Boot interview questions asked in developer interviews. Spring Boot includes four main components that are:
This is one of the most popular Java Spring Boot interview Questions asked in technical interviews. Spring Boot starters are a set of components that provide dependencies during the development phase. Starters help initiate the application building process by providing a wide variety of dependencies. Starters in Spring Boot are contained in the org.springframework.boot group.
This is a common Java Spring Boot interview question asked in technical interviews. The different starters in Spring Boot include:
The Spring Boot Actuator is a core feature in Spring Boot that enables developers to analyze application metrics while the application is running and optimize or fix issues wherever applicable. Aspects like the currently running threads, CPU usage, and beans can be evaluated to optimize the application’s performance.
Through SPring Actuators, developers can easily access REST points and gather information from multiple web sources.
This is a common Java Spring Boot interview question asked for experienced programmers in technical interviews. Theymeleaf is a server-side template engine used to embed natural templates to web applications. Theymeleaf can be integrated into applications built using Spring and HTML5.
To integrate Theymeleaf in Spring Boot, the following code needs to be used:
 <dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-devtools</artifactId>
</dependency>
Spring Initializr is a tool used to create projects in Spring Boot by specifying the project details. The following steps need to be followed to create a project using Spring Initializr:
You can enable HTTP/2 support in Spring using the function: server.http2.enabled=true
This is one of the most popular Java Spring Boot interview questions asked in software engineering interviews. Spring Data is a SpringSource Project that allows developers to easily access cloud-based services, data access technologies, relational and non-relational databases in the Spring framework.
Take a look at some Java Spring Boot Interview Questions here.
In this section, we’ll look at some additional Java Spring Boot interview questions that you can practice for your technical interview.
These top Java Spring Boot interview questions will provide you with everything you need to know to prepare for your upcoming software developer interview. To better prepare, go over some mock interviews.
Q1. Why is it important to practice Java Spring Boot interview questions for technical interviews?
Knowing your way around Java Spring Boot is important because FAANG+ companies often test your knowledge of popular Java frameworks and Microservices in coding and design rounds of technical interviews.
Q2. What is the primary use of the Spring Boot tool when working with the Spring framework?
The Spring Boot tool is used mainly to configure Rest APIs and enhance the performance of applications created using Spring.
Q3. Are Spring Boot interview questions asked at Java fresher interviews?
If you’re a fresher, you’re not necessarily expected to know the functioning of various Java Microservices tools and frameworks. Thus, Spring Boot interview questions are mostly asked at interviews for experienced developers.
Q4. What are the minimum requirements for a Spring Boot system?
For Spring Boot to function correctly, the following system requirements are necessary: Java version – Java8+, Java Spring 5.1.9, Maven 3.3+ (Explicit support), Gradle 4.4+ (Explicit Support), Jetty 9.4 (Container Support), Undertow 2.0 (Servlet Version 4.0).
Q5. Is Java Spring Boot used for front-end development?
Java Spring Boot is mainly used to support the backend or server-side of Microservices applications built using the Spring framework.
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