From 0c73eb7f6a9c00b9c9dc685fbe413d7c75f71733 Mon Sep 17 00:00:00 2001 From: mohammadreza Date: Thu, 30 Apr 2026 10:29:25 -0700 Subject: [PATCH] Complete project implementation: Movie updates, Rational completes, main improvement --- src/main/java/Rational/Rational.java | 36 ++-- src/main/java/movie/apis/Main.java | 9 +- src/main/java/movie/apis/Movie.java | 206 +++++++++++++++++++++ src/main/java/movie/apis/MovieService.java | 94 ++++++++-- 4 files changed, 313 insertions(+), 32 deletions(-) diff --git a/src/main/java/Rational/Rational.java b/src/main/java/Rational/Rational.java index 7bd840e..fc4ad20 100644 --- a/src/main/java/Rational/Rational.java +++ b/src/main/java/Rational/Rational.java @@ -54,42 +54,50 @@ 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 + int newNumerator = r1.numerator * r2.denominator - r2.numerator * r1.denominator; + int newDenominator = r1.denominator * r2.denominator; + return new Rational(newNumerator, newDenominator); } // 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 + int newNumerator = r1.numerator * r2.numerator; + int newDenominator = r1.denominator * r2.denominator; + return new Rational(newNumerator, newDenominator); } // 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("Denominator cannot be 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 + int newNumerator = r1.numerator * r2.denominator; + int newDenominator = r1.denominator * r2.numerator; + return new Rational(newNumerator, newDenominator); } // PROVIDED - String representation diff --git a/src/main/java/movie/apis/Main.java b/src/main/java/movie/apis/Main.java index f0e713d..d471844 100644 --- a/src/main/java/movie/apis/Main.java +++ b/src/main/java/movie/apis/Main.java @@ -22,14 +22,16 @@ public class Main { case 2: // TODO: Get genre ID and page from user, then call movieService.displayMoviesByGenre() - + 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: @@ -45,7 +47,6 @@ public class Main { if (running) { System.out.println("\nPress Enter to continue..."); scanner.nextLine(); - scanner.nextLine(); } } diff --git a/src/main/java/movie/apis/Movie.java b/src/main/java/movie/apis/Movie.java index 969774a..7b81090 100644 --- a/src/main/java/movie/apis/Movie.java +++ b/src/main/java/movie/apis/Movie.java @@ -13,12 +13,218 @@ public class Movie { private List genres; private List images; private String year; + private String imdb_id; + private String imdb_votes; private String imdb_rating; private String country; + private String director; + private String actors; + private String awards; + private String metascore; + private String plot; + private String rated; + private String released; + private String runtime; + private String type; + private String writer; // TODO: Create a constructor with all fields + public Movie() { + // for Gson + } + + public Movie(Long id, String title, List genres, List images, String year, + String imdb_id, String imdb_votes, String imdb_rating, + String country, String director, String actors, + String awards, String metascore, String plot, + String rated, String released, String runtime, + String type, String writer) { + + this.id = id; + this.title = title; + this.genres = genres; + this.images = images; + this.year = year; + + this.imdb_id = imdb_id; + this.imdb_votes = imdb_votes; + this.imdb_rating = imdb_rating; + + this.country = country; + this.director = director; + this.actors = actors; + + this.awards = awards; + this.metascore = metascore; + this.plot = plot; + + this.rated = rated; + this.released = released; + this.runtime = runtime; + + this.type = type; + this.writer = writer; + } + // 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 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_id() { + return imdb_id; + } + + public void setImdb_id(String imdb_id) { + this.imdb_id = imdb_id; + } + + public String getImdb_votes() { + return imdb_votes; + } + + public void setImdb_votes(String imdb_votes) { + this.imdb_votes = imdb_votes; + } + + 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 String getActors() { + return actors; + } + + public void setActors(String actors) { + this.actors = actors; + } + + public String getAwards() { + return awards; + } + + public void setAwards(String awards) { + this.awards = awards; + } + + public String getMetascore() { + return metascore; + } + + public void setMetascore(String metascore) { + this.metascore = metascore; + } + + public String getPlot() { + return plot; + } + + public void setPlot(String plot) { + this.plot = plot; + } + + 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 getRuntime() { + return runtime; + } + + public void setRuntime(String runtime) { + this.runtime = runtime; + } + + 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; + } } \ 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..2ce996d 100644 --- a/src/main/java/movie/apis/MovieService.java +++ b/src/main/java/movie/apis/MovieService.java @@ -103,10 +103,33 @@ public class MovieService { * 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 + String moviesString = getMoviesByGenreList(genreId, page); + + if (moviesString == null) { + System.out.println("fail to get movies"); + return; + } + try { - // Your code here + JsonObject moviesObject = JsonParser.parseString(moviesString).getAsJsonObject(); + JsonArray moviesArray = moviesObject.getAsJsonArray("movies"); + + 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 + ")"); + } + + // Print total and total_pages + long total = moviesObject.get("total").getAsLong(); + long totalPages = moviesObject.get("total_pages").getAsLong(); + + System.out.println("Total: " + total); + System.out.println("Total Pages: " + totalPages); } catch (Exception e) { System.err.println("ERROR: " + e.getMessage()); @@ -121,12 +144,13 @@ public class MovieService { 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 = 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(); + else { + System.out.println("Error: " + response.statusCode()); + } } catch (Exception e) { System.out.println("!!Exception : " + e.getMessage()); } @@ -175,16 +199,58 @@ public class MovieService { 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; } + + // Step 3-5: Parse JSON and display details try { - // TODO: Parse jsonResponse to JsonObject - // HINT: Use JsonParser.parseString(jsonResponse).getAsJsonObject() - // TODO: use Gson to parse the json - // Your code here: + Gson gson = new Gson(); + Movie movie = gson.fromJson(jsonResponse, Movie.class); + + String title = movie.getTitle(); + String year = movie.getYear(); + String director = movie.getDirector(); + String actors = movie.getActors(); + + String genres = ""; + if (movie.getGenres() != null && !movie.getGenres().isEmpty()) { + genres = String.join(", ", movie.getGenres()); + } + + String imdbRating = movie.getImdb_rating(); + String imdbVotes = movie.getImdb_votes(); + + System.out.println("======================================================================="); + System.out.println(" " + title + " (" + year + ")"); + System.out.println("======================================================================="); + System.out.println("Rating: " + imdbRating + "/10 | Votes: " + imdbVotes); + + System.out.println("Director: " + director); + System.out.println("Cast: " + actors); + if (!genres.isEmpty()) System.out.println("Genre: " + genres); + + 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()); + + if (movie.getMetascore() != null) { + System.out.println("Metascore: " + movie.getMetascore()); + } + if (movie.getType() != null) { + System.out.println("Type: " + movie.getType()); + } + if (movie.getWriter() != null) { + System.out.println("Writer: " + movie.getWriter()); + } + if (movie.getImdb_id() != null) { + System.out.println("IMDB ID: " + movie.getImdb_id()); + } + + System.out.println("======================================================================="); + } catch (Exception e) { System.err.println("ERROR parsing movie details: " + e.getMessage()); } -- 2.54.0