JAVA SORT HACKKERANK WITH COMPARATOR.COMPARING AND THEN COMPARING FUNCTION
import java.util.*; class Student{ private int id; private String fname; private double cgpa; public Student( int id, String fname, double cgpa) { super (); this .id = id; this .fname = fname; this .cgpa = cgpa; } public int getId() { return id; } public String getFname() { return fname; } public double getCgpa() { return cgpa; } } //Complete the code public class Solution { public static void main(String[] args){ Scanner in = new Scanner(System.in); int testCases = Integer.parseInt(in.nextLine()); List<Student> studentList = new ArrayList<Student>(); while (testCases> 0 ){ int id = in.nextInt(); String fname = in.next(); double cgpa = in.nextDouble(); Student st = new Student(id, fname, cgpa); st