Convert to ArrayList by manual polling

ManualPolling.java

import java.util.PriorityQueue;

class Student implements Comparable<Student> {
    private int id;
    private String name;
    private double cgpa;

    public Student(String name, double cgpa, int id) {
        this.id = id;
        this.name = name;
        this.cgpa = cgpa;
    }

    public int getId() {
        return id;
    }

    public String getName() {
        return name;
    }

    public double getCgpa() {
        return cgpa;
    }


    @Override
    public int compareTo(Student o) {
        if (this.cgpa != o.cgpa) {
            return this.cgpa > o.cgpa ? -1 : 1;
        }

        int compareName = this.name.compareTo(o.name);
        if (compareName != 0) {
            return compareName;
        }

        return this.id - o.id;
    }
}

class Priorities {
    public List<Student> getStudents(List<String> events) {
        PriorityQueue<Student> pQueue = new PriorityQueue<>();

        for (String event : events) {
            if (event.charAt(0) == 'E') {
                String[] ops = event.split(" ");
                pQueue.offer(new Student(ops[1], Double.parseDouble(ops[2]), Integer.parseInt(ops[3])));
            } else {
                pQueue.poll();
            }
        }

        List<Student> students = new ArrayList<>();
        while (pQueue.size() > 0) {
            students.add(pQueue.poll());
        }

        return students;
    }
}