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MVC Pattern
Last Updated : 26 May, 2026
title: MVC Design Pattern
Design Patterns40 words2 headingsExamples included
title: MVC Design Pattern description: Model-View-Controller pattern
Separation of concerns: Data (Model), UI (View), Logic (Controller).
User Action → Controller → updates Model → notifies View → renders updated data
Java Console Example
java exampleWoHoTech
// Model
class Student {
private String name;
private int marks;
Student(String name, int marks) { this.name = name; this.marks = marks; }
String getName() { return name; }
int getMarks() { return marks; }
void setMarks(int marks) { this.marks = marks; }
}
// View
class StudentView {
void displayStudent(String name, int marks) {
System.out.println("Student Name: " + name);
System.out.println("Marks: " + marks);
System.out.println("Grade: " + (marks >= 90 ? "A" : marks >= 75 ? "B" : "C"));
}
void displayMessage(String message) { System.out.println(message); }
}
// Controller
class StudentController {
private Student model;
private StudentView view;
StudentController(Student model, StudentView view) {
this.model = model;
this.view = view;
}
void updateMarks(int marks) {
model.setMarks(marks);
view.displayMessage("Marks updated to: " + marks);
}
void displayStudentDetails() {
view.displayStudent(model.getName(), model.getMarks());
}
}
// Main
Student student = new Student("Ram", 85);
StudentView view = new StudentView();
StudentController controller = new StudentController(student, view);
controller.displayStudentDetails();
controller.updateMarks(92);
controller.displayStudentDetails();Benefits
- Separation of concerns
- Easy testing (Model independently testable)
- Multiple views for same model
- Parallel development possible
Exam Focus
Revise definitions, diagrams, examples, and short-answer points for MVC Pattern.
Interview Use
Prepare one clear explanation, one practical example, and one common mistake for this Java topic.
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