From 82ffb2ec8e34ebc628caf1e9275a9dd8af02b31e Mon Sep 17 00:00:00 2001 From: Arefe Talebi Date: Fri, 8 May 2026 22:24:07 +0330 Subject: [PATCH] HW03 --- src/main/java/Rational/Rational.java | 34 ++--- src/main/java/movie/apis/Main.java | 9 +- src/main/java/movie/apis/Movie.java | 139 ++++++++++++++++++++- src/main/java/movie/apis/MovieService.java | 63 ++++++++-- 4 files changed, 214 insertions(+), 31 deletions(-) diff --git a/src/main/java/Rational/Rational.java b/src/main/java/Rational/Rational.java index 7bd840e..7ca2c49 100644 --- a/src/main/java/Rational/Rational.java +++ b/src/main/java/Rational/Rational.java @@ -54,42 +54,48 @@ 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.denominator * 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 + if (r2.numerator == 0){ + throw new ArithmeticException("Cannot divide by zero"); + } + 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..f4b43a9 100644 --- a/src/main/java/movie/apis/Main.java +++ b/src/main/java/movie/apis/Main.java @@ -22,14 +22,15 @@ public class Main { case 2: // TODO: Get genre ID and page from user, then call movieService.displayMoviesByGenre() - + int genreId = getIntInput("Enter genre ID: "); + int page = getIntInput("Enter page: "); + movieService.displayMoviesByGenre((long) 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: diff --git a/src/main/java/movie/apis/Movie.java b/src/main/java/movie/apis/Movie.java index 969774a..1309680 100644 --- a/src/main/java/movie/apis/Movie.java +++ b/src/main/java/movie/apis/Movie.java @@ -15,10 +15,145 @@ public class Movie { private String year; private String imdb_rating; private String country; + private String director; + private String actors; + private String runtime; + private String rated; + private String released; + private String plot; + private String awards; + + public String getTitle() { + return title; + } + + public List getImages() { + return images; + } + + public List getGenres() { + return genres; + } + + public void setGenres(List genres) { + this.genres = genres; + } + + public void setImages(List images) { + this.images = images; + } + + public void setTitle(String title) { + this.title = title; + } + + 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 String getActors() { + return actors; + } + + public void setActors(String actors) { + this.actors = actors; + } + + public String getRuntime() { + return runtime; + } + + public void setRuntime(String 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 String getAwards() { + return awards; + } + + public void setAwards(String awards) { + this.awards = awards; + } // TODO: Create a constructor with 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; + } // 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; + } + } \ 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..f5f1334 100644 --- a/src/main/java/movie/apis/MovieService.java +++ b/src/main/java/movie/apis/MovieService.java @@ -61,7 +61,6 @@ public class MovieService { } - public void displayGenres() { String jsonResponse = getGenresList(); @@ -73,7 +72,8 @@ public class MovieService { try { JsonObject rootObject = JsonParser.parseString(jsonResponse).getAsJsonObject(); JsonArray genresArray = rootObject.getAsJsonArray("genres"); - Type genreListType = new TypeToken>(){}.getType(); + Type genreListType = new TypeToken>() { + }.getType(); Gson gson = new Gson(); List genres = gson.fromJson(genresArray, genreListType); @@ -89,24 +89,43 @@ 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 jsonResponse = getMoviesByGenreList(genreId, page); + if (jsonResponse == null) { + System.out.println("Failed to get movies"); + return; + } + JsonObject rootObject = JsonParser.parseString(jsonResponse).getAsJsonObject(); + JsonArray moviesArray = rootObject.getAsJsonArray("movies"); + System.out.println("\nMOVIES LIST:"); + for (JsonElement element : moviesArray) { + JsonObject movie = element.getAsJsonObject(); + + Long id = movie.get("id").getAsLong(); + String title = movie.get("title").getAsString(); + String year = movie.get("year").getAsString(); + + System.out.println("ID: " + id + " | " + title + " (" + year + ")"); + } + + System.out.println("\nTOTAL: " + rootObject.get("total").getAsInt()); + System.out.println("TOTAL PAGES: " + rootObject.get("total_pages").getAsInt()); } catch (Exception e) { System.err.println("ERROR: " + e.getMessage()); @@ -126,7 +145,17 @@ public class MovieService { // 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(); + } } catch (Exception e) { System.out.println("!!Exception : " + e.getMessage()); } @@ -181,10 +210,22 @@ public class MovieService { 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()); + System.out.println("Director: " + movie.getDirector()); + System.out.println("Cast: " + movie.getActors()); + System.out.println("Genre: " + 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()); }