Learn how to use the Dependency Injection Design Pattern in ASP.NET Core applications with examples. Understand the need, benefits, and methods of DI in ASP.NET Core. In software engineering, dependency injection is a programming technique in which an object or function receives other objects or functions that it requires, as opposed to creating them internally. There have been several questions already posted with specific questions about dependency injection , such as when to use it and what frameworks are there for it. However, What is dependency inject... Spring Dependency Injection allows object dependencies to be injected at runtime, enhancing flexibility and modularity in Java applications.