Untitled

import java.util.*;

public class bluebox {
    // ArrayLists for different genres of movies
    private static ArrayList<Movie> action = new ArrayList<>();
    private static ArrayList<Movie> comedy = new ArrayList<>();
    // ... other genre lists ...

    // HashMap to store customer receipts (customer name/ID mapped to list of rented movies)
    private static HashMap<String, List<Movie>> customerReceipts = new HashMap<>();

    // HashSet to ensure unique movie titles
    private static HashSet<String> uniqueMovieTitles = new HashSet<>();

    // Array to store average ratings for each genre
    private static double[] genreRatings = new double[5]; // 0: Action, 1: Comedy, ...

    public static void main(String[] args) {
        // ... existing setup ...

        // Example of adding movies and ensuring uniqueness
        addMovie(new ActionMovie("Transformers", 8, true));
        // ... add other movies ...

        // Calculate and store average ratings for each genre
        calculateGenreRatings();

        // ... existing user input handling ...
    }

    // Method to add a movie to the appropriate genre list and check for uniqueness
    private static void addMovie(Movie movie) {
        // Check if the movie title is already present
        if (uniqueMovieTitles.add(movie.getName())) {
            // Add movie based on genre
            switch (movie.getGenre().toLowerCase()) {
                case "action": action.add(movie); break;
                // ... other cases ...
            }
        } else {
            // Notify if movie already exists
            System.out.println("Movie already exists: " + movie.getName());
        }
    }

    // Method to calculate average ratings for each genre
    private static void calculateGenreRatings() {
        genreRatings[0] = calculateAverageRating(action);
        genreRatings[1] = calculateAverageRating(comedy);
        // ... calculations for other genres ...
    }

    // Utility method to calculate the average rating of a list of movies
    private static double calculateAverageRating(ArrayList<Movie> movies) {
        double total = 0;
        for (Movie movie : movies) {
            total += movie.getRating();
        }
        return movies.size() > 0 ? total / movies.size() : 0;
    }
}