implement Rational.java

src/main/java/Rational/Rational.java

@@ -51,45 +51,40 @@ 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
+        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) ÷ (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 IllegalArgumentException("Cannot divide by a zero numerator");
+        }
+        Rational reversed = new Rational(other.denominator, other.numerator);
+        return Rational.multiply(reversed, this);
     }
 
-    // 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

src/main/java/movie/apis/Main.java

@@ -21,15 +21,15 @@ public class Main {
                     break;
 
                 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: ");
+                    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:

src/main/java/movie/apis/Movie.java

@@ -15,10 +15,113 @@ public class Movie {
     private String year;
     private String imdb_rating;
     private String country;
+    private String actors;
+    private String awards;
+    private String director;
+    private String imdb_id;
+    private String imdb_votes;
+    private int 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(Long id, String title, List<String> genres, List<String> 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 Movie(Long id, String title, List<String> genres, List<String> images,
+                 String year, String imdb_rating, String country, String actors, String awards,
+                 String director, String imdb_id, String imdb_votes, int metascore, String plot,
+                 String rated, String released, String runtime, String type, String writer) {
+
+        this(id, title, genres, images, year, imdb_rating, 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<String> getGenres() {return genres;}
+    public void setGenres(List<String> genres) {this.genres = genres;}
+
+    public List<String> getImages() {return images;}
+    public void setImages(List<String> 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 int getMetascore() {return metascore;}
+    public void setMetascore(int 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;}
 }

src/main/java/movie/apis/MovieService.java

@@ -87,26 +87,36 @@ 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
+
+        String jsonResponse = getMoviesByGenreList(genreId, page);
+
+        if (jsonResponse == null) {
+            System.out.println("Failed to get genres");
+            return;
+        }
+
         try {
-            // Your code here
+            JsonObject rootObject = JsonParser.parseString(jsonResponse).getAsJsonObject();
+            JsonArray moviesArray = rootObject.getAsJsonArray("movies");
+            Type movieListType = new TypeToken<ArrayList<Movie>>(){}.getType();
+
+            Gson gson = new Gson();
+            List<Movie> movies = gson.fromJson(moviesArray, movieListType);
+            int total = rootObject.get("total").getAsInt();
+            int totalPages = rootObject.get("total_pages").getAsInt();
+
+            for(int i=0 ; i<movies.size() ; i++) {
+
+                Movie movie = movies.get(i);
+                System.out.println("ID: " + movie.getId() + " | " + movie.getTitle() +
+                                    " (" + movie.getYear() + ")");
+
+            }
+
+            System.out.println("\nTotal: " + total + " | " + "Total Pages: " + totalPages);
+
 
         } catch (Exception e) {
             System.err.println("ERROR: " + e.getMessage());
@@ -114,77 +124,55 @@ 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<String> 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<String> 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;
     }
 
-     /*
-     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("=======================================================================\n" +
+                                movie.getTitle() + " (" + movie.getYear() + ")" +
+                                "\n=======================================================================");
+
+            System.out.println("Rating: " + movie.getImdb_rating() + " | votes: " + movie.getImdb_votes() +
+                                "\nDirector: " + movie.getDirector() +
+                                "\nWriter(s): " + movie.getWriter() +
+                                "\nCast: " + movie.getActors() +
+                                "\nGenre: " + movie.getGenres() +
+                                "\nRuntime: " + movie.getRuntime() + " | Rated: " + movie.getRated() +
+                                "\nCountry: " + movie.getCountry() + " | Released: " + movie.getReleased() +
+                                "\nplot: " + movie.getPlot() +
+                                "\nAwards: " + movie.getAwards() +
+                                "\n=======================================================================");
+
         } catch (Exception e) {
             System.err.println("ERROR parsing movie details: " + e.getMessage());
         }