HackerrankCode.java

//Hackerrank: https://www.hackerrank.com/challenges/java-comparator/problem

import java.util.*;

// Write your Checker class here
class Checker implements Comparator<Player>
{
    public int compare(Player p1, Player p2)
    {
        if (p1.score < p2.score) 
            return 1;
        if (p1.score > p2.score) 
            return -1;
        if (p1.name.compareTo(p2.name) > 0) 
            return 1;
        if (p1.name.compareTo(p2.name) < 0) 
            return -1;
        else return 0;
    }
}

class Player{
    String name;
    int score;
    
    Player(String name, int score){
        this.name = name;
        this.score = score;
    }
}

class Solution {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int n = scan.nextInt();

        Player[] player = new Player[n];
        Checker checker = new Checker();
        
        for(int i = 0; i < n; i++){
            player[i] = new Player(scan.next(), scan.nextInt());
        }
        scan.close();
     
        Arrays.sort(player, checker);
        for(int i = 0; i < player.length; i++){
            System.out.printf("%s %s\n", player[i].name, player[i].score);
        }
    }
}