Part 1 of this book consists of chapter 1, which introduces you to Spring Boot and some of its important characteristics. Chapter 1 covers the overview of Spring Boot, its various components, and some of its important features, such as Spring Boot starter, autoconfiguration, actuator, and failure analyzers. We also explore the project structure and various elements of a Spring Boot application. Chapter 1 also discusses creating an executable JAR file from a Spring Boot application and explores the JAR file components.