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Docker is a platform designed to help developers build, ship, and run applications using containerization. It has revolutionized the way applications are deployed and managed, making the process more efficient and reliable. This article will provide an in-depth look at Docker, its benefits, installation, and practical usage.

Spring Boot is a powerful framework that simplifies the development of production-ready applications. Annotations play a crucial role in Spring Boot by providing metadata and configuration to the Spring container. This guide explains various essential annotations used in Spring Boot, their usage, and provides examples for each.

Java lambdas provide a concise way to express instances of single-method interfaces (functional interfaces). They enhance code readability and maintainability by allowing you to write more compact and expressive code for functional programming constructs. Lambdas also facilitate the use of functional interfaces in the Java API, making it easier to work with collections and streams. Overall, they contribute to more efficient and modern Java programming practices.