Design Pattern - MVC - Sample Case

(MVC) README.txt

(MVC) Langkah pembuatan : 
1. Student.java 
2. StudentView.java 
3. StudentController.java 
4. MVCPatternDemo.java

MVCPatternDemo.java

public class MVCPatternDemo {
    public static void main(String[] args) {

        // Fetch student record based on his roll number from the database
        Student model = retrieveStudentFromDatabase();

        StudentView view = new StudentView();

        StudentController controller = new StudentController(model, view);

        controller.updateView();

        controller.setStudentName("Suyatna");
        controller.updateView();
    }

    private static Student retrieveStudentFromDatabase(){
        return new Student("1","Daniyal");
    }
}

Student.java

public class Student {
    private String rollNo;
    private String name;

    public Student(String rollNo, String name) {
        this.rollNo = rollNo;
        this.name = name;
    }

    public String getRollNo() {
        return rollNo;
    }

    public void setRollNo(String rollNo) {
        this.rollNo = rollNo;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

StudentController.java

public class StudentController {
    private Student model;
    private StudentView view;

    public StudentController(Student model, StudentView view) {
        this.model = model;
        this.view = view;
    }

    public void setStudentName(String name){
        model.setName(name);
    }

    public void setStudentRollNo(String rollNo){
        model.setRollNo(rollNo);
    }

    public String getStudentName(){
        return model.getName();
    }

    public String getStudentRollNo(){
        return model.getRollNo();
    }

    public void updateView(){
        view.printStudentDetails(model.getName(), model.getRollNo());
    }
}

StudentView.java

public class StudentView {
    public void printStudentDetails(String studentName, String studentRollNo){
        System.out.println("Student");
        System.out.println("Name : "+studentName);
        System.out.println("Roll No. : "+studentRollNo);
    }
}