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Explain MVC design pattern in J2EE.

MVC (Model-View-Controller) is a J2EE design pattern that decouples data access logic and presentation from business logic. MVC is a software architecture pattern for developing web application.

Model represents the application data domain. Application business logic is contained within the model and is responsible for maintaining data.

View It represents the user interface, with which the end users communicates and the model data is presented and viewed.

The Controller reacts to the user input. It creates, populates the model and helps identify the relevant view.

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