GradStudent.java

package org.university.core;

import java.util.ArrayList;

public class GradStudent extends Student{
    private ArrayList<publication>publications;
    private Professor advisor;
    public GradStudent(String firstName, String lastName, String ID, int joiningYear, Department department,Professor professor) {
        super(firstName, lastName, ID, joiningYear, department);
        publications=new ArrayList<publication>();
        this.advisor=professor;
    }
    public void addPublication(Publication p){
        publications.add(p);
    }

    public ArrayList<publication> getPublications() {
        return publications;
    }
}