Aggregation

package taoshiflex.lab7;

public class Guardian {
    public String name; // Public variable
    public String relation; // Public variable

    public Guardian(String name, String relation) {
        this.name = name;
        this.relation = relation;
    }

    public void displayGuardianInfo() {
        System.out.println("Guardian Name: " + name);
        System.out.println("Relation: " + relation);
    }
}


package taoshiflex.lab7;

// Student.java
public class Student {
    public String name; // Public variable
    public int id;      // Public variable
    public String dept; // Public variable
    public Guardian guardian; // Association with Guardian

    public Student(String name, int id, String dept, Guardian guardian) {
        this.name = name;
        this.id = id;
        this.dept = dept;
        this.guardian = guardian;
    }

    public void supervision(Faculty faculty) {
        System.out.println("Supervised by Faculty: " + faculty.name);
    }

    public void displayStudentInfo() {
        System.out.println("Student Name: " + name);
        System.out.println("ID: " + id);
        System.out.println("Department: " + dept);
        if (guardian != null) {
            guardian.displayGuardianInfo();
        }
    }
}


package taoshiflex.lab7;

// Faculty.java
public class Faculty {
    public String name; // Public variable
    public int id;      // Public variable
    public String dept; // Public variable

    public Faculty(String name, int id, String dept) {
        this.name = name;
        this.id = id;
        this.dept = dept;
    }

    public void teaches(Student student) {
        System.out.println("Faculty " + name + " teaches Student: " + student.name);
    }
}


package taoshiflex.lab7;

// Test Program
public class Lab7 {
public static void main(String[] args) {
        // Create a Guardian
        Guardian guardian = new Guardian("John Doe", "Father");

        // Create a Student associated with the Guardian
        Student student = new Student("Taoshif", 101, "CSE", guardian);

        // Create a Faculty
        Faculty faculty = new Faculty("Shadman", 201, "CSE");

        // Display Information
        student.displayStudentInfo();
        student.supervision(faculty);

        // Faculty teaching the student
        faculty.teaches(student);
    }
}