JavaProgramming/HackerRank/Eighteen.java at patch-2 · subham500071430/JavaProgramming · GitHub

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package HackerRank;

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;

}

// Comparator class to sort according to the problem statement

class SortByCGPA implements Comparator<Student> {

public int compare(Student a, Student b) {

if (a.getCgpa() != b.getCgpa()) {

return Double.compare(b.getCgpa(), a.getCgpa()); // Descending CGPA

} else if (!a.getFname().equals(b.getFname())) {

return a.getFname().compareTo(b.getFname()); // Ascending Name

} else {

return a.getId() - b.getId(); // Ascending ID

}

public class Eighteen {

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);

studentList.add(st);

testCases--;

}

Collections.sort(studentList, new SortByCGPA());

for (Student st : studentList) {

System.out.println(st.getFname());

}

JavaProgramming/HackerRank/Eighteen.java at patch-2 · subham500071430/JavaProgramming · GitHub

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