From f63511cddf8ed23eacd02d3c8c4eac3348c9ae9a Mon Sep 17 00:00:00 2001 From: "amirM.t" Date: Wed, 29 Apr 2026 21:49:59 +0330 Subject: [PATCH 1/2] feat : add rational functionalities --- src/main/java/Rational/Rational.java | 54 ++++++++++++++-------------- 1 file changed, 28 insertions(+), 26 deletions(-) diff --git a/src/main/java/Rational/Rational.java b/src/main/java/Rational/Rational.java index 7bd840e..9ad1089 100644 --- a/src/main/java/Rational/Rational.java +++ b/src/main/java/Rational/Rational.java @@ -51,45 +51,47 @@ public class Rational { return r1.add(r2); } - // 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 + public Rational subtract(Rational other) + { + 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 + public static Rational subtract(Rational r1, Rational r2) + { + 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 + public Rational multiply(Rational other) + { + 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 + public static Rational multiply(Rational r1, Rational r2) + { + 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 + public Rational divide(Rational other) + { + 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 + public static Rational divide(Rational r1, Rational r2) + { + return r1.divide(r2); } // PROVIDED - String representation -- 2.54.0 From 399aea940e5b2a5623581bd6c8107cbe5f5dee05 Mon Sep 17 00:00:00 2001 From: "amirM.t" Date: Wed, 29 Apr 2026 21:59:04 +0330 Subject: [PATCH 2/2] feat : implement movie apis (includes bonus features) --- src/main/java/movie/apis/Main.java | 16 +- src/main/java/movie/apis/Movie.java | 233 ++++++++++++++++++++- src/main/java/movie/apis/MovieService.java | 106 +++++++--- 3 files changed, 316 insertions(+), 39 deletions(-) diff --git a/src/main/java/movie/apis/Main.java b/src/main/java/movie/apis/Main.java index f0e713d..b98fe03 100644 --- a/src/main/java/movie/apis/Main.java +++ b/src/main/java/movie/apis/Main.java @@ -15,27 +15,26 @@ public class Main { displayMenu(); int choice = getIntInput("Enter your choice: "); - switch (choice) { + switch (choice) + { case 1: movieService.displayGenres(); break; case 2: - // TODO: Get genre ID and page from user, then call movieService.displayMoviesByGenre() - + Long genreId = getLongInput("Enter genre ID: "); + int page = getIntInput("Enter page number: "); + movieService.displayMoviesByGenre(genreId, (long) 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: @@ -45,7 +44,6 @@ 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..5886441 100644 --- a/src/main/java/movie/apis/Movie.java +++ b/src/main/java/movie/apis/Movie.java @@ -16,9 +16,236 @@ public class Movie { private String imdb_rating; private String country; - // TODO: Create a constructor with all fields + private String actors; + private String awards; + private String director; + private String imdb_id; + private String imdb_votes; + private String metascore; + private String plot; + private String rated; + private String released; + private String runtime; + private String type; + private String writer; - // TODO: Create a simple constructor with id and title only - // 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 = id; + this.title = 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 Movie(Long id, + String title, + List genres, + List images, + String year, + String imdb_rating, + String country, + String actors, + String awards, + String director, + String imdb_id, + String imdb_votes, + 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_rating = imdb_rating; + this.country = country; + this.actors = actors; + this.awards = awards; + this.director = director; + this.imdb_id = imdb_id; + this.imdb_votes = imdb_votes; + this.metascore = metascore; + this.plot = plot; + this.rated = rated; + this.released = released; + this.runtime = runtime; + this.type = type; + this.writer = writer; + } + + 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 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 getDirector() { + return director; + } + + public void setDirector(String director) { + this.director = director; + } + + 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 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..d82f480 100644 --- a/src/main/java/movie/apis/MovieService.java +++ b/src/main/java/movie/apis/MovieService.java @@ -102,13 +102,41 @@ 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 - try { - // Your code here + public void displayMoviesByGenre(Long genreId, Long page) + { + try + { + String jsonResponse = getMoviesByGenreList(genreId, page); - } catch (Exception e) { + if (jsonResponse == null) + { + System.out.println("Failed to get movies for genre ID: " + genreId); + return; + } + + JsonObject rootObject = JsonParser.parseString(jsonResponse).getAsJsonObject(); + JsonArray moviesArray = rootObject.getAsJsonArray("movies"); + + int total = rootObject.get("total").getAsInt(); + int totalPages = rootObject.get("total_pages").getAsInt(); + + System.out.println("\nMovies for 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.printf("ID: %d | Title: %s (%s)", id, title, year); + System.out.println(); + } + System.out.println("Total movies: " + total); + System.out.println("Total pages: " + totalPages); + } + catch (Exception e) + { System.err.println("ERROR: " + e.getMessage()); } } @@ -118,19 +146,27 @@ public class MovieService { * 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(); + 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()); + return null; + } + catch (Exception e) + { + System.out.println("!!Exception : " + e.getMessage()); return null; - } catch (Exception e) { - System.out.println("!!Exception : " + e.getMessage()); } - return null; } /* @@ -170,22 +206,38 @@ public class MovieService { */ - public void displayMovieDetails(Long movieId) { - // Step 1: Get JSON response from API + public void displayMovieDetails(Long movieId) + { 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) { + 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) { + try + { + JsonObject movieObj = JsonParser.parseString(jsonResponse).getAsJsonObject(); + + Gson gson = new Gson(); + Movie movie = gson.fromJson(movieObj, 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: " + 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()); } } -- 2.54.0