Using Spring Initializr — Spring Technical Interview Questions & Answers

Bootstrapping a project at start.spring.io.

Using Spring Initializr

  • Spring Initializr (start.spring.io) generates a ready project for you.
  • Choose: language (Java), build tool (Maven/Gradle), Spring Boot version.
  • Add dependencies: Web, JPA, Security, etc. as starters.
  • Download the ZIP, open in IDE, run the main class.
  • Why useful: Correct project shape and compatible dependency versions from day one.
  • Adding too many starters before you need them.
  • Initializr bootstraps pom/build + main class + folder structure.

Technical Interview Tip: Explain Initializr as the standard project bootstrap tool.

Code Examples for Using Spring Initializr

Using Spring Initializr — working example

// Typical layout after Initializr (Maven):
// src/main/java/.../DemoApplication.java
// src/main/resources/application.properties
// pom.xml → spring-boot-starter-web

import org.springframework.boot.CommandLineRunner;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
class BootHooks {
  @Bean
  CommandLineRunner seed() {
    return args -> System.out.println("app ready: " + String.join(",", args));
  }
}

Using Spring Initializr — create projects via Initializr/STS; run the @SpringBootApplication main class or package an executable jar.

How to Explain Using Spring Initializr to an Interviewer

What is Using Spring Initializr (sb create)?

Used for a short Using Spring Initializr sb create example a small REST app Not just the heading

Give one small example of Using Spring Initializr (sb create).

the smallest Using Spring Initializr sb create example you can type Bootstrapping a project at start

What mistake do beginners make with Using Spring Initializr (sb create)?

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Where do you use Using Spring Initializr (sb create)?

a small REST app a short Using Spring Initializr sb create example