MVC Controller
An MVC Controller is a component in the Model-View-Controller architectural pattern that handles user input, processes requests, and coordinates interactions between the Model and View. It receives input from users (e.g., via HTTP requests in web applications), invokes business logic in the Model, and selects the appropriate View to render the response. This separation of concerns improves code maintainability, testability, and scalability in software development.
Developers should learn and use MVC Controllers when building applications that require a clear separation between data handling, user interface, and control logic, such as web frameworks (e.g., ASP.NET MVC, Spring MVC), desktop applications, or mobile apps. It is essential for implementing structured, testable code in scenarios like handling form submissions, routing requests, and managing application flow, making it a core skill in many modern development environments.