Complete project implementation: Movie updates, Rational completes, main improvement

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) ÷ (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

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();
             }
         }
 

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

@@ -13,12 +13,218 @@ public class Movie {
     private List<String> genres;
     private List<String> 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<String> genres, List<String> 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<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_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;
+    }
 }

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<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("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());
         }