The responsibilities of each layer of MVC

Model (model): Models represent core business logic and data (don't understand as model just entity Class)

View: The view should be concerned with how the data should be presented, and should not contain any business logic (business logic should be written in model)

Controller: The controller controls the logic of the program and acts as a coordinating role between the view and the model. The controller receives the user input information from the view layer, and then uses the model to perform a specific operation and passes the final result back to the view

MVC follows the principle of "separation of concerns": model is responsible for business logic and data, view is responsible for displaying data, and controller is responsible for stringing the first two together to control how they work.