diff --git a/src/main/java/Rational/Rational.java b/src/main/java/Rational/Rational.java index 7bd840e..6860230 100644 --- a/src/main/java/Rational/Rational.java +++ b/src/main/java/Rational/Rational.java @@ -54,42 +54,43 @@ public class Rational { // TODO: Instance method - this - other // Formula: a/b - c/d = (a*d - c*b) / (b*d) public Rational subtract(Rational other) { - // YOUR CODE HERE - return null; // Remove this line when implemented + int newNumerator = this.numerator * other.denominator - other.numerator * this.denominator; + int newDenominator = this.denominator * other.denominator; + return new Rational(newNumerator, newDenominator); } // TODO: Static method - r1 - r2 public static Rational subtract(Rational r1, Rational r2) { - // YOUR CODE HERE - return null; // Remove this line when implemented + return r1.subtract(r2); } // TODO: Instance method - this * other // Formula: (a/b) * (c/d) = (a*c) / (b*d) public Rational multiply(Rational other) { - // YOUR CODE HERE - return null; // Remove this line when implemented + int newNumerator = this.numerator * other.numerator; + int newDenominator = this.denominator * other.denominator; + return new Rational(newNumerator, newDenominator); } // TODO: Static method - r1 * r2 public static Rational multiply(Rational r1, Rational r2) { - // YOUR CODE HERE - return null; // Remove this line when implemented + return r1.multiply(r2); } // TODO: Instance method - this / other // Formula: (a/b) รท (c/d) = (a*d) / (b*c) public Rational divide(Rational other) { - // YOUR CODE HERE - // HINT: Division is multiplication by reciprocal - // Don't forget to check if other.numerator is zero! - return null; // Remove this line when implemented + if (other.numerator == 0 ) { + throw new ArithmeticException("Cannot divide by zero"); + } + int newNumerator = this.numerator * other.denominator; + int newDenominator = this.denominator * other.numerator; + return new Rational(newNumerator, newDenominator); } // TODO: Static method - r1 / r2 public static Rational divide(Rational r1, Rational r2) { - // YOUR CODE HERE - return null; // Remove this line when implemented + return r1.divide(r2); } // PROVIDED - String representation diff --git a/src/main/java/movie/apis/Main.java b/src/main/java/movie/apis/Main.java index f0e713d..98e4dce 100644 --- a/src/main/java/movie/apis/Main.java +++ b/src/main/java/movie/apis/Main.java @@ -3,55 +3,42 @@ package movie.apis; import java.util.Scanner; public class Main { - private static final MovieService movieService = new MovieService(); private static final Scanner scanner = new Scanner(System.in); public static void main(String[] args) { System.out.println("\n=== MOVIE API CLIENT ===\n"); - boolean running = true; while (running) { displayMenu(); int choice = getIntInput("Enter your choice: "); - switch (choice) { case 1: movieService.displayGenres(); break; - - case 2: - // TODO: Get genre ID and page from user, then call movieService.displayMoviesByGenre() - + case 2: + Long genreId = getLongInput("Enter Genre ID: "); + Long page = getLongInput("Enter Page Number: "); + movieService.displayMoviesByGenre(genreId, page); break; - - case 3: - // TODO (BONUS): Get movie ID from user, then call movieService.displayMovieDetails() - - + Long movieId = getLongInput("Enter Movie ID: "); + movieService.displayMovieDetails(movieId); break; - case 0: running = false; System.out.println("Goodbye!"); - break; - default: - System.out.println("Invalid choice! Please enter 0-4"); + System.out.println("Invalid choice! Please enter 0-3"); } - if (running) { System.out.println("\nPress Enter to continue..."); scanner.nextLine(); - scanner.nextLine(); } } - scanner.close(); } - private static void displayMenu() { System.out.println("\n================================"); System.out.println(" MENU"); @@ -62,7 +49,6 @@ public class Main { System.out.println("0. Exit"); System.out.println("================================"); } - private static int getIntInput(String prompt) { System.out.print(prompt); while (!scanner.hasNextInt()) { @@ -73,7 +59,6 @@ public class Main { scanner.nextLine(); return input; } - private static Long getLongInput(String prompt) { System.out.print(prompt); while (!scanner.hasNextLong()) { diff --git a/src/main/java/movie/apis/Movie.java b/src/main/java/movie/apis/Movie.java index 969774a..1e11fc7 100644 --- a/src/main/java/movie/apis/Movie.java +++ b/src/main/java/movie/apis/Movie.java @@ -2,10 +2,6 @@ package movie.apis; import java.util.List; -/** - * Model class representing a movie - * Fields: id, title, genres, images - */ public class Movie { private Long id; @@ -15,10 +11,101 @@ public class Movie { private String year; private String imdb_rating; private String country; + private String director; + private List actors; + private int runtime; // minutes + private String rated; + private String released; // date string + private String plot; + private int imdb_votes; + private int metascore; + private String type; + private String writer; + private String awards; - // TODO: Create a constructor with all fields + public Movie() { + } - // TODO: Create a simple constructor with id and title only + public Movie(Long id, String title) { + this.id = id; + this.title = title; + } - // TODO: Create getters and setters for all fields + public Movie(Long id, String title, List genres, List images, String year, + String imdb_rating, String country, String director, List actors, + int runtime, String rated, String released, String plot, int imdb_votes, + int metascore, String type, String writer, String awards) { + this.id = id; + this.title = title; + this.genres = genres; + this.images = images; + this.year = year; + this.imdb_rating = imdb_rating; + this.country = country; + this.director = director; + this.actors = actors; + this.runtime = runtime; + this.rated = rated; + this.released = released; + this.plot = plot; + this.imdb_votes = imdb_votes; + this.metascore = metascore; + this.type = type; + this.writer = writer; + this.awards = awards; + } + + public Long getId() { return id; } + public void setId(Long id) { this.id = id; } + + public String getTitle() { return title; } + public void setTitle(String title) { this.title = title; } + + public List getGenres() { return genres; } + public void setGenres(List genres) { this.genres = genres; } + + public List getImages() { return images; } + public void setImages(List images) { this.images = images; } + + public String getYear() { return year; } + public void setYear(String year) { this.year = year; } + + public String getImdb_rating() { return imdb_rating; } + public void setImdb_rating(String imdb_rating) { this.imdb_rating = imdb_rating; } + + public String getCountry() { return country; } + public void setCountry(String country) { this.country = country; } + + public String getDirector() { return director; } + public void setDirector(String director) { this.director = director; } + + public List getActors() { return actors; } + public void setActors(List actors) { this.actors = actors; } + + public int getRuntime() { return runtime; } + public void setRuntime(int runtime) { this.runtime = runtime; } + + public String getRated() { return rated; } + public void setRated(String rated) { this.rated = rated; } + + public String getReleased() { return released; } + public void setReleased(String released) { this.released = released; } + + public String getPlot() { return plot; } + public void setPlot(String plot) { this.plot = plot; } + + public int getImdb_votes() { return imdb_votes; } + public void setImdb_votes(int imdb_votes) { this.imdb_votes = imdb_votes; } + + public int getMetascore() { return metascore; } + public void setMetascore(int metascore) { this.metascore = metascore; } + + public String getType() { return type; } + public void setType(String type) { this.type = type; } + + public String getWriter() { return writer; } + public void setWriter(String writer) { this.writer = writer; } + + public String getAwards() { return awards; } + public void setAwards(String awards) { this.awards = awards; } } \ No newline at end of file diff --git a/src/main/java/movie/apis/MovieService.java b/src/main/java/movie/apis/MovieService.java index 3f053f5..6747c7b 100644 --- a/src/main/java/movie/apis/MovieService.java +++ b/src/main/java/movie/apis/MovieService.java @@ -23,53 +23,21 @@ public class MovieService { HttpRequest request = HttpRequest.newBuilder() .uri(URI.create(GENRES_URL)) .build(); - HttpResponse response = client.send(request, HttpResponse.BodyHandlers.ofString()); - - if (response.statusCode() == 200) { - System.out.println("Genres List received successfully"); - return response.body(); - } else { - throw new IOException("HTTP error code: " + response.statusCode()); - } + if (response.statusCode() == 200) return response.body(); + else throw new IOException("HTTP error code: " + response.statusCode()); } catch (Exception e) { System.out.println("!!Exception : " + e.getMessage()); } return null; } - private String getMoviesByGenreList(Long genreId, Long page) { - try { - String url = "https://api.meshcomp.ir/api/v1/genres/" + genreId + "/movies?page=" + page; - - HttpRequest request = HttpRequest.newBuilder() - .uri(URI.create(url)) - .build(); - - HttpResponse response = client.send(request, HttpResponse.BodyHandlers.ofString()); - - if (response.statusCode() == 200) { - return response.body(); - } else { - System.out.println("HTTP error code: " + response.statusCode()); - return null; - } - } catch (Exception e) { - System.out.println("!!Exception : " + e.getMessage()); - } - return null; - } - - - public void displayGenres() { String jsonResponse = getGenresList(); - if (jsonResponse == null) { System.out.println("Failed to get genres"); return; } - try { JsonObject rootObject = JsonParser.parseString(jsonResponse).getAsJsonObject(); JsonArray genresArray = rootObject.getAsJsonArray("genres"); @@ -87,105 +55,85 @@ public class MovieService { } } - /** - * TODO 1: Display movies for a specific genre and page - * - * Open this link in your browser (and check Pretty-print checkbox) to view json format: - * https://api.meshcomp.ir/api/v1/genres/1/movies - * - * Steps: - * - Call getMoviesByGenreList(genreId, page) to get JSON - * - Parse JSON to JsonObject - * - Get "movies" array (NOT "data") - * - Loop through array and print: "ID: {id} | {title} ({year})" - * - Also print total and total_pages - * - * PUT ALL PARSING CODE INSIDE try-catch - */ - public void displayMoviesByGenre(Long genreId, Long page) { - // TODO: Write your code here - // All parsing code must be inside try-catch + private String getMoviesByGenreList(Long genreId, Long page) { try { - // Your code here - - } catch (Exception e) { - System.err.println("ERROR: " + e.getMessage()); - } - } - - - /** - * BONUS: Fetch movie details from API using movie ID - * URL format: https://api.meshcomp.ir/api/v1/movies/{movieId} - */ - private String getMovieById(Long movieId) { - try { - // TODO: Complete this method - // String url = MOVIE_BY_ID_URL + movieId; - // HttpRequest request = HttpRequest.newBuilder().uri(URI.create(url)).build(); - // HttpResponse response = client.send(request, HttpResponse.BodyHandlers.ofString()); - // if (response.statusCode() == 200) return response.body(); - - return null; + String url = "https://api.meshcomp.ir/api/v1/genres/" + genreId + "/movies?page=" + page; + HttpRequest request = HttpRequest.newBuilder() + .uri(URI.create(url)) + .build(); + HttpResponse response = client.send(request, HttpResponse.BodyHandlers.ofString()); + if (response.statusCode() == 200) return response.body(); + System.out.println("HTTP error code: " + response.statusCode()); } catch (Exception e) { System.out.println("!!Exception : " + e.getMessage()); } return null; } - /* - BONUS TODO: Display complete movie details for a given movie ID + public void displayMoviesByGenre(Long genreId, Long page) { + try { + String jsonResponse = getMoviesByGenreList(genreId, page); + if (jsonResponse == null) { + System.out.println("Failed to get movies for genre " + genreId); + return; + } + JsonObject rootObject = JsonParser.parseString(jsonResponse).getAsJsonObject(); + JsonArray moviesArray = rootObject.getAsJsonArray("movies"); - Open this link in your browser (and check Pretty-print checkbox) to view json format: - https://api.meshcomp.ir/api/v1/movies/1 - - INSTRUCTIONS: - 1. Call getMovieById(movieId) to get the JSON response string - 2. Check if response is null (if yes, print error and return) - 3. Parse the JSON string to JsonObject (inside try-catch) - 4. Use Gson to extract all fields from the JSON and map them to your Movie class: - - Add missing JSON fields to your Movie class first (actors, awards, director, - imdb_id, imdb_votes, metascore, plot, rated, released, runtime, type, writer) - - Then use Gson to parse your json string - 5. Print all movie details in a readable format - - (PUT ALL PARSING CODE INSIDE THE EXISTING try-catch) - */ - - /* EXAMPLE OUTPUT: - - ======================================================================= - THE SHAWSHANK REDEMPTION (1994) - ======================================================================= - Rating: 9.3/10 | Votes: 1,738,596 - Director: Frank Darabont - Cast: Tim Robbins, Morgan Freeman, Bob Gunton, William Sadler - Genre: Crime, Drama - Runtime: 142 min | Rated: R - Country: USA | Released: 14 Oct 1994 - Plot: Two imprisoned men bond over a number of years, finding - solace and eventual redemption through acts of common decency. - Awards: Nominated for 7 Oscars. Another 19 wins & 30 nominations. - ======================================================================= - - */ + System.out.println("\nMovies in Genre ID: " + genreId + " | Page: " + page); + for (JsonElement element : moviesArray) { + JsonObject movieObj = element.getAsJsonObject(); + Long id = movieObj.get("id").getAsLong(); + String title = movieObj.get("title").getAsString(); + String year = movieObj.get("year").getAsString(); + System.out.println("ID: " + id + " | " + title + " (" + year + ")"); + } + Long total = rootObject.get("total").getAsLong(); + Long totalPages = rootObject.get("total_pages").getAsLong(); + System.out.println("\nTotal movies: " + total + " | Total pages: " + totalPages + "\n"); + } catch (Exception e) { + System.err.println("ERROR: " + e.getMessage()); + } + } + private String getMovieById(Long movieId) { + try { + String url = MOVIE_BY_ID_URL + movieId; + HttpRequest request = HttpRequest.newBuilder() + .uri(URI.create(url)) + .build(); + HttpResponse response = client.send(request, HttpResponse.BodyHandlers.ofString()); + if (response.statusCode() == 200) return response.body(); + System.out.println("HTTP error code: " + response.statusCode()); + } catch (Exception e) { + System.out.println("!!Exception : " + e.getMessage()); + } + return null; + } public void displayMovieDetails(Long movieId) { - // Step 1: Get JSON response from API String jsonResponse = getMovieById(movieId); - - // Step 2: Check if we got valid data - // Step 3-5: Parse JSON and display details (PUT YOUR CODE INSIDE try-catch) if (jsonResponse == null) { System.out.println("Failed to get movie details for ID: " + movieId); return; } try { - // TODO: Parse jsonResponse to JsonObject - // HINT: Use JsonParser.parseString(jsonResponse).getAsJsonObject() - // TODO: use Gson to parse the json - // Your code here: - } catch (Exception e) { + Gson gson = new Gson(); + Movie movie = gson.fromJson(jsonResponse, Movie.class); + + System.out.println("======================================================================="); + System.out.println(" " + movie.getTitle() + " (" + movie.getYear() + ")"); + System.out.println("======================================================================="); + System.out.println("Rating: " + movie.getImdb_rating() + " | Votes: " + movie.getImdb_votes()); + System.out.println("Director: " + movie.getDirector()); + System.out.println("Cast: " + String.join(", ", movie.getActors())); + System.out.println("Genre: " + String.join(", ", movie.getGenres())); + System.out.println("Runtime: " + movie.getRuntime() + " | Rated: " + movie.getRated()); + System.out.println("Country: " + movie.getCountry() + " | Released: " + movie.getReleased()); + System.out.println("Plot: " + movie.getPlot()); + System.out.println("Awards: " + movie.getAwards()); + System.out.println("======================================================================="); + } + catch (Exception e) { System.err.println("ERROR parsing movie details: " + e.getMessage()); } }