Discussion on Java Comparator Challenge

Sort 195 Discussions, By:

2 weeks ago+ 0 comments

class Checker implements Comparator<Player> {
    @Override
    public int compare(Player p1, Player p2) {        
        if (p1.score == p2.score) {
            return p1.name.compareTo(p2.name);    
        }
        return p2.score - p1.score;
    }
}

3 weeks ago+ 0 comments

import java.util.*;

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

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);
        }
    }
}

3 weeks ago+ 0 comments

One liner because writing understandable code is less fun.

class Checker implements Comparator<Player>{
    
    public int compare(Player p1, Player p2){
        
        return p1.score != p2.score ? p2.score -p1.score : p1.name.compareToIgnoreCase(p2.name) > 0 ? 1 : -1;
        
    }
    
}

1 month ago+ 0 comments

@Override public int compare(Player a, Player b){ int x= Integer.valueOf(b.score).compareTo(Integer.valueOf(a.score)); if(x==0){ return a.name.compareTo(b.name); } return x; }

1 month ago+ 0 comments

class Checker implements Comparator{ @Override public int compare(Player p1,Player p2){

    if(p1.score==p2.score){
       return p1.name.compareTo(p2.name);
    }
    else if(p1.score>p2.score){
        return -1;
    }
    else
    return 1; 
}

}

public class Solution {

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

   List<Player> playerList=new ArrayList<Player>();
   Checker checker=new Checker();

   while(numberOfPlayer>0){
       String name=in.next();
       int score=in.nextInt();

       Player player=new Player(name,score);
       playerList.add(player);
       numberOfPlayer--;
   }

   Collections.sort(playerList,checker);
   for(Player p:playerList){
       System.out.println(p.name+" "+p.score);
   }  

}

}

Load more conversations