Followers with Likes and Comments [Java]

import java.util.*;

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

        Map<String, Integer> followersWithLikesAndComments = new TreeMap<>();

        String command;

        while (!"Log out".equals(command = scanner.nextLine())) {
            String[] tokens = command.split(": ");

            String currentCommand = tokens[0];
            String username = tokens[1];

            switch (currentCommand) {
                case "New follower":
                    if (!followersWithLikesAndComments.containsKey(username)) {
                        followersWithLikesAndComments.put(username, 0);
                    }

                    break;
                case "Like":
                    int countOfLikes = Integer.parseInt(tokens[2]);

                    if (!followersWithLikesAndComments.containsKey(username)) {
                        followersWithLikesAndComments.put(username, countOfLikes);
                    } else {
                        followersWithLikesAndComments.put(username, followersWithLikesAndComments.get(username) + countOfLikes);
                    }

                    break;
                case "Comment":
                    if (!followersWithLikesAndComments.containsKey(username)) {
                        followersWithLikesAndComments.put(username, 1);
                    } else {
                        followersWithLikesAndComments.put(username, followersWithLikesAndComments.get(username) + 1);
                    }

                    break;
                case "Blocked":
                    if (followersWithLikesAndComments.containsKey(username)) {
                        followersWithLikesAndComments.remove(username);
                    } else {
                        System.out.printf("%s doesn't exist.%n", username);
                    }

                    break;
            }
        }

        System.out.printf("%d followers%n", followersWithLikesAndComments.size());

        followersWithLikesAndComments.entrySet().stream()
                .sorted(Map.Entry.<String, Integer>comparingByValue()
                        .reversed()
                        .thenComparing(Map.Entry::getKey))
                .forEach(entry -> System.out.printf("%s: %d%n", entry.getKey(), entry.getValue()));
    }
}