MeTubeStatistics

package addRetakeExam_28Oct2018;

import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Scanner;

public class MeTubeStatistics {
    public static void main(String[] args) {
        @SuppressWarnings("resource")

        Scanner sc = new Scanner(System.in);

        Map<String, Integer> videoViews = new LinkedHashMap<>();
        Map<String, Integer> videoLikes = new LinkedHashMap<>();

        String line = "";

        while (!"stats time".equals(line = sc.nextLine())) {

            if (line.contains("-")) {
                String[] tokensDash = line.split("-");
                String name = tokensDash[0];
                int views = Integer.parseInt(tokensDash[1]);

                if (!videoViews.containsKey(name)) {
                    videoViews.put(name, views);
                    if (videoViews.containsKey(name)) {
                        videoLikes.putIfAbsent(name, 0);
                    }
                } else {
                    videoViews.put(name, videoViews.get(name) + views);
                }
            } else {
                String[] tokensCol = line.split(":");
                String option = tokensCol[0];
                String name = tokensCol[1];

                switch (option) {
                case "like":
                    if (videoLikes.containsKey(name)) {
                        videoLikes.put(name, videoLikes.get(name) + 1);
                    }
                    break;
                case "dislike":
                    if (videoLikes.containsKey(name)) {
                        videoLikes.put(name, videoLikes.get(name) - 1);
                    }
                    break;
                }
            }
        }

        String criteria = sc.nextLine();

        if (criteria.equals("by views")) {
            videoViews.entrySet().stream().sorted((v1, v2) -> {
                int sort = Integer.compare(v2.getValue(), v1.getValue());
                return sort;
            }).forEach(e -> System.out.println(
                    String.format("%s - %d views - %d likes", e.getKey(), e.getValue(), videoLikes.get(e.getKey()))));
        } else if (criteria.equals("by likes")) {
            videoLikes.entrySet().stream().sorted((l1, l2) -> {
                int sort = Integer.compare(l2.getValue(), l1.getValue());
                return sort;
            }).forEach(e -> System.out.println(
                    String.format("%s - %d views - %d likes", e.getKey(), videoViews.get(e.getKey()), e.getValue())));
        }
    }
}