A hands-on walkthrough to running your first Spring Boot application, understanding its structure, and verifying everything works correctly using the embedded server.

A clear and practical explanation of Inversion of Control (IoC), the foundational principle of Spring and Spring Boot, and how it enables clean, modular, and testable application architecture.

A complete guide to Dependency Injection (DI) in Spring, explaining types of injection, why DI is essential, and how Spring Boot uses DI to create clean and maintainable applications.

An in-depth comparison of BeanFactory and ApplicationContext, the two core IoC containers in the Spring Framework, and how they manage beans differently in Spring Boot applications.