diff --git a/src/main/java/Rational/Rational.java b/src/main/java/Rational/Rational.java index 7bd840e..fc6fa5a 100644 --- a/src/main/java/Rational/Rational.java +++ b/src/main/java/Rational/Rational.java @@ -51,45 +51,56 @@ public class Rational { return r1.add(r2); } - // TODO: Instance method - this - other - // Formula: a/b - c/d = (a*d - c*b) / (b*d) + // COMPLETED - Instance method - this - other 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; + + Rational result = new Rational(newNumerator, newDenominator); + result.simplify(); + + return result; } - // TODO: Static method - r1 - r2 + // COMPLETED - 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) + // COMPLETED - Instance method - this * other 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; + + Rational result = new Rational(newNumerator, newDenominator); + result.simplify(); + + return result; } - // TODO: Static method - r1 * r2 + // COMPLETED - 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) + // COMPLETED - Instance method - this / other 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("Caught division by zero"); + } + + int newNumerator = this.numerator * other.denominator; + int newDenominator = this.denominator * other.numerator; + + Rational result = new Rational(newNumerator, newDenominator); + result.simplify(); + + return result; } - // TODO: Static method - r1 / r2 + // COMPLETED - 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..396b59d 100644 --- a/src/main/java/movie/apis/Main.java +++ b/src/main/java/movie/apis/Main.java @@ -21,15 +21,17 @@ public class Main { break; case 2: - // TODO: Get genre ID and page from user, then call movieService.displayMoviesByGenre() + Long genreId = getLongInput("Please set your desired genre id: "); + Long page = getLongInput("Please set the number of the page: "); + movieService.displayMoviesByGenre(genreId, page); break; case 3: - // TODO (BONUS): Get movie ID from user, then call movieService.displayMovieDetails() - + Long movieId = getLongInput("Please set the movie id: "); + movieService.displayMovieDetails(movieId); break; case 0: diff --git a/src/main/java/movie/apis/Movie.java b/src/main/java/movie/apis/Movie.java index 969774a..5f4dac3 100644 --- a/src/main/java/movie/apis/Movie.java +++ b/src/main/java/movie/apis/Movie.java @@ -1,11 +1,9 @@ package movie.apis; +import com.fasterxml.jackson.annotation.JsonIgnoreProperties; import java.util.List; -/** - * Model class representing a movie - * Fields: id, title, genres, images - */ +@JsonIgnoreProperties(ignoreUnknown = true) public class Movie { private Long id; @@ -13,12 +11,92 @@ public class Movie { private List genres; private List images; private String year; + private String released; + private String imdb_id; + private String imdb_votes; private String imdb_rating; + private String meta_score; private String country; + private String actors; + private String director; + private String writer; + private String awards; + private String plot; + private String rated; + private String runtime; + private String type; - // TODO: Create a constructor with all fields + public Movie(Long id, String title, List genres, List images, String year, String released, String imdb_id, + String imdb_votes, String imdb_rating, String country, String actors, String director, String writer, String awards, + String plot, String rated, String runtime, String type) { - // TODO: Create a simple constructor with id and title only + this(id, title, genres, images, year, imdb_rating, country); + this.released = released; + this.imdb_id = imdb_id; + this.imdb_votes = imdb_votes; + this.actors = actors; + this.director = director; + this.writer = writer; + this.awards = awards; + this.plot = plot; + this.rated = rated; + this.runtime = runtime; + this.type = type; + } - // 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) { + this(id, title); + this.genres = genres; + this.images = images; + this.year = year; + this.imdb_rating = imdb_rating; + this.country = country; + } + + public Movie(Long id, String title) { + this.id = id; + this.title = title; + } + + public Movie() {} + + public void setId(Long id) {this.id = id;} + public void setTitle(String title) {this.title = title;} + public void setGenres(List genres) {this.genres = genres;} + public void setImages(List images) {this.images = images;} + public void setYear(String year) {this.year = year;} + public void setCountry(String country) {this.country = country;} + public void setImdb_rating(String imdb_rating) {this.imdb_rating = imdb_rating;} + public void setActors(String actors) {this.actors = actors;} + public void setAwards(String awards) {this.awards = awards;} + public void setDirector(String director) {this.director = director;} + public void setImdb_id(String imdb_id) {this.imdb_id = imdb_id;} + public void setImdb_votes(String imdb_votes) {this.imdb_votes = imdb_votes;} + public void setMeta_score(String meta_score) {this.meta_score = meta_score;} + public void setPlot(String plot) {this.plot = plot;} + public void setRated(String rated) {this.rated = rated;} + public void setReleased(String released) {this.released = released;} + public void setRuntime(String runtime) {this.runtime = runtime;} + public void setType(String type) {this.type = type;} + public void setWriter(String writer) {this.writer = writer;} + + public Long getId() {return id;} + public String getTitle() {return title;} + public List getGenres() {return genres;} + public List getImages() {return images;} + public String getYear() {return year;} + public String getCountry() {return country;} + public String getImdb_rating() {return imdb_rating;} + public String getActors() {return actors;} + public String getImdb_id() {return imdb_id;} + public String getDirector() {return director;} + public String getImdb_votes() {return imdb_votes;} + public String getAwards() {return awards;} + public String getMeta_score() {return meta_score;} + public String getPlot() {return plot;} + public String getRated() {return rated;} + public String getReleased() {return released;} + public String getRuntime() {return runtime;} + public String getType() {return type;} + public String getWriter() {return writer;} } \ 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..43042f2 100644 --- a/src/main/java/movie/apis/MovieService.java +++ b/src/main/java/movie/apis/MovieService.java @@ -1,5 +1,7 @@ package movie.apis; +import com.fasterxml.jackson.core.type.TypeReference; +import com.fasterxml.jackson.databind.ObjectMapper; import com.google.gson.*; import com.google.gson.reflect.TypeToken; @@ -87,44 +89,38 @@ 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 - try { - // Your code here + String jsonData = getMoviesByGenreList(genreId, page); - } catch (Exception e) { + try { + JsonObject jsonObject = JsonParser.parseString(jsonData).getAsJsonObject(); + + String moviesJson = jsonObject.get("movies").toString(); + + ObjectMapper mapper = new ObjectMapper(); + List movies = mapper.readValue( + moviesJson, + new TypeReference>() {} + ); + + for (Movie movie : movies) { + System.out.println("ID: " + movie.getId() + " | " + movie.getTitle() + " ( " + movie.getYear() + ")"); + } + + System.out.println("total: " + movies.size() + " | page: " + page + " | total pages: " + movies.size()/10); + } + 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(); + 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; } catch (Exception e) { @@ -133,58 +129,34 @@ public class MovieService { return null; } - /* - BONUS TODO: Display complete movie details for a given movie ID - - 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. - ======================================================================= - - */ - 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: + JsonObject jsonObject = JsonParser.parseString(jsonResponse).getAsJsonObject(); + + Gson gson = new Gson(); + Movie movie = gson.fromJson(jsonObject, Movie.class); + + System.out.println("======================================================================="); + System.out.println(movie.getTitle() + " ( " + movie.getYear() + ")"); + System.out.println("======================================================================="); + System.out.println("Rating: " + movie.getImdb_rating() + "/10 | Votes: " + movie.getImdb_votes()); + System.out.println("Director: " + movie.getDirector()); + System.out.println("Cast: " + movie.getActors()); + System.out.println("Genre: " + movie.getGenres()); + System.out.println("Runtime: " + movie.getRuntime() + " min | 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()); }