What is Spring Boot?

A) A command-line tool for managing Spring projects

B) A framework that simplifies the development of Spring applications by providing default configurations

C) A tool for building Android applications

D) A database management system

Answer:

B) A framework that simplifies the development of Spring applications by providing default configurations

Explanation:

Spring Boot is a framework designed to simplify the development of Spring-based applications by offering default configurations and a suite of tools that reduce the need for manual setup. It allows developers to create production-ready applications with minimal configuration and no need for extensive XML configuration files, as was common in earlier versions of Spring.

Spring Boot automatically configures the application based on the dependencies added in the project. It also includes embedded servers like Tomcat or Jetty, making it easy to run Spring applications without the need for an external server. This “opinionated” approach helps developers get started quickly, enabling them to focus on writing business logic rather than worrying about the setup and configuration of the underlying framework.

For example, with Spring Boot, you can create a web application using a simple main class with a @SpringBootApplication annotation, and Spring Boot will automatically configure the necessary components to run the application:


import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class MyApplication {
    public static void main(String[] args) {
        SpringApplication.run(MyApplication.class, args);
    }
}

This simplicity and ease of use make Spring Boot a popular choice for developing Java-based microservices and web applications.

Reference links:

Spring Boot Tutorial