Sorting with Lambda Function using Java

import java.io.*;
import java.util.*;

class Student {

    String name;
    int age, id;

    Student(String name, int age, int id) {
        this.name = name;
        this.age = age;
        this.id = id;
    }

    public String getName() {
        return this.name;
    }

    public int getAge() {
        return this.age;
    }

    public int getId() {
        return this.id;
    }

    @Override
    public String toString() {
        return ("Name: " + this.getName() +
                ", Age: " + this.getAge() +
                ", Id: " + this.getId());
    }
}

public class Main {

    static void printList(ArrayList<Student> studentList) {
        for(Student s : studentList) {
            System.out.println(s);
        }
    }

    public static void main(String[] args) {

        ArrayList<Student> studentList = new ArrayList<Student>();
        studentList.add(new Student("Jon", 22, 1001));
        studentList.add(new Student("Steve", 19, 1003));
        studentList.add(new Student("Kevin", 23, 1005));
        studentList.add(new Student("Ron", 20, 1010));
        studentList.add(new Student("Lucy", 18, 1111));

        // original sequence
        System.out.println("Before sorting the student data:");
        printList(studentList);

        // sorting by age
        System.out.println("\nSorting by Age:");
        studentList.sort((Student s1, Student s2) -> s1.getAge() - s2.getAge());
        printList(studentList);

        // sorting by name
        System.out.println("\nSorting by name:");
        studentList.sort((Student s1, Student s2) -> s1.getName().compareTo(s2.getName()));
        printList(studentList);

        // sorting by id
        System.out.println("\nSorting by id:");
        studentList.sort((Student s1, Student s2) -> s1.getId() - s2.getId());
        printList(studentList);
    }
}