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

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); 
 } 
} 

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 String getStudentName(){ 
 return model.getName(); 
 } 
 
 public void setStudentRollNo(String rollNo){ 
 model.setRollNo(rollNo); 
 } 
 
 public String getStudentRollNo(){ 
 return model.getRollNo(); 
 } 
 
 public void updateView(){ 
 view.printStudentDetails(model.getName(), model.getRollNo()); 
 } 
} 
 

public class MVCPatternDemo { 
 public static void main(String[] args) { 
 
 //fetch student record based on his roll no from the database 
 Student model = retriveStudentFromDatabase(); 
 
 //Create a view : to write student details on console 
 StudentView view = new StudentView(); 
 
 StudentController controller = new StudentController(model, view); 
 
 controller.updateView(); 
 
 //update model data 
 controller.setStudentName("John"); 
 
 controller.updateView(); 
 } 
 
 private static Student retriveStudentFromDatabase(){ 
 Student student = new Student(); 
 student.setName("Robert"); 
 student.setRollNo("10"); 
 return student; 
 } 
}