JF-Maps-MoreExercise-01.Ranking

package com.company;

import java.lang.reflect.Array;
import java.util.*;

public class Ranking {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        HashMap<String, String> contests = new HashMap<>();
        HashMap<String, Integer> bestResults = new HashMap<>();

        String input = sc.nextLine();
        while (!input.toLowerCase().equals("end of contests")) {
            String[] tokens = input.split("\\:");
            contests.putIfAbsent(tokens[0], tokens[1]);

            input = sc.nextLine();
        }
        Map<String, Map<String, Integer>> users = new TreeMap<>();

        String otherInput = sc.nextLine();
        while (!otherInput.toLowerCase().equals("end of submissions")) {
            String[] tokens = otherInput.split("=>");
            String contest = tokens[0];
            String password = tokens[1];
            String username = tokens[2];
            int points = Integer.parseInt(tokens[3]);

            if (contests.containsKey(contest) && contests.get(contest).equals(password)) {
                if (!users.containsKey(username)) {
                    users.put(username, new TreeMap<String, Integer>());
                    users.get(username).put(contest, points);
                    bestResults.put(username, points);

                } else {


                    if (users.get(username).containsKey(contest)) {
                        int currPoints = users.get(username).get(contest);

                        if (points > currPoints) {
                            users.get(username).put(contest, points);
                            bestResults.put(username, bestResults.get(username) + points - currPoints);
                        }

                    } else {
                        int currPoints2 = bestResults.get(username);
                        users.get(username).put(contest, points);
                        bestResults.put(username, currPoints2 + points);
                    }

                }
            }


            otherInput = sc.nextLine();
        }
        int maxPoints = Collections.max(bestResults.values());

        for (Map.Entry<String, Integer> entry : bestResults.entrySet()) {
            if (entry.getValue() == maxPoints) {
                System.out.printf("Best candidate is %s with total %d points.%n", entry.getKey(), entry.getValue());
            }
        }

        System.out.println("Ranking: ");

        users.entrySet().stream().
                forEach(e -> {
                    System.out.println(e.getKey());
                    e.getValue().entrySet().stream().sorted((a, b) -> b.getValue().compareTo(a.getValue()))
                            .forEach(c -> System.out.printf("#  %s -> %d%n", c.getKey(), c.getValue()));
                });

    }
}