HW3 all Right

pom.xml

@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>org.to</groupId>
-    <artifactId>HW03</artifactId>
+    <artifactId>HW</artifactId>
     <version>1.0-SNAPSHOT</version>
 
     <properties>
@@ -14,18 +14,10 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
     <dependencies>
-        <!-- GSON: Google JSON parsing library -->
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.11.0</version>
-        </dependency>
-
-        <!-- Jackson: Another JSON parsing library -->
-        <dependency>
-            <groupId>com.fasterxml.jackson.core</groupId>
-            <artifactId>jackson-databind</artifactId>
-            <version>2.17.2</version>
+            <version>2.10.1</version>
         </dependency>
     </dependencies>
 

src/main/java/Rational/Rational.java

@@ -4,7 +4,6 @@ public class Rational {
     private int numerator;
     private int denominator;
 
-    // Constructor
     public Rational(int numerator, int denominator) {
         if (denominator == 0) {
             throw new IllegalArgumentException("Denominator cannot be zero");
@@ -14,7 +13,6 @@ public class Rational {
         simplify();
     }
 
-    // GCD helper for simplification
     private int gcd(int a, int b) {
         a = Math.abs(a);
         b = Math.abs(b);
@@ -26,73 +24,62 @@ public class Rational {
         return a;
     }
 
-    // Simplify the fraction
     private void simplify() {
         int gcd = gcd(numerator, denominator);
         numerator /= gcd;
         denominator /= gcd;
-
-        // Keep denominator positive
         if (denominator < 0) {
             numerator = -numerator;
             denominator = -denominator;
         }
     }
 
-    //  COMPLETED - Instance method: this + other
     public Rational add(Rational other) {
         int newNumerator = this.numerator * other.denominator + other.numerator * this.denominator;
         int newDenominator = this.denominator * other.denominator;
         return new Rational(newNumerator, newDenominator);
     }
 
-    //  COMPLETED - Static method: r1 + r2
     public static Rational add(Rational r1, Rational r2) {
         return r1.add(r2);
     }
 
-    // TODO: Instance method - this - other
-    // Formula: a/b - c/d = (a*d - c*b) / (b*d)
+    // 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)
+    // (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)
+    // (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 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
+        return r1.divide(r2);
     }
 
-    //  PROVIDED - String representation
     @Override
     public String toString() {
         if (denominator == 1) {
@@ -101,7 +88,6 @@ public class Rational {
         return numerator + "/" + denominator;
     }
 
-    //  PROVIDED - Decimal value
     public double toDouble() {
         return (double) numerator / denominator;
     }

src/main/java/Rational/RationalTest.java

@@ -101,8 +101,9 @@ public class RationalTest {
         try {
             Rational zero = new Rational(0, 1);
             Rational divisionByZero = r1.divide(zero);
-        } catch (ArithmeticException e) {
+        } catch (IllegalArgumentException e) {
             System.out.println("Caught division by zero: " + e.getMessage());
         }
+
     }
 }

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

@@ -21,15 +21,16 @@ 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 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:

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

@@ -1,24 +1,114 @@
 package movie.apis;
 
+import com.google.gson.annotations.SerializedName;
 import java.util.List;
 
-/**
- * Model class representing a movie
- * Fields: id, title, genres, images
- */
 public class Movie {
-
     private Long id;
     private String title;
-    private List<String> genres;
-    private List<String> images;
     private String year;
-    private String imdb_rating;
     private String country;
 
-    // TODO: Create a constructor with all fields
+    // استفاده از SerializedName برای تطبیق دقیق با کلیدهای JSON
+    @SerializedName("imdb_rating")
+    private String imdbRating;
 
-    // TODO: Create a simple constructor with id and title only
+    @SerializedName("imdb_votes")
+    private String imdbVotes;
 
-    // TODO: Create getters and setters for all fields
+    private String director;
+    private String actors;
+    private String plot;
+    private String awards;
+    private String rated;
+    private String runtime;
+
+    private List<String> genres;
+    private List<String> images;
+    private String metascore;
+
+    @SerializedName("imdb_id")
+    private String imdbId;
+
+    public void setImdbRating(String imdbRating) {
+        this.imdbRating = imdbRating;
+    }
+
+    private String released;
+    private String type;
+    private String writer;
+
+
+    // Constructor کامل
+    public Movie(Long id, String title, String year, String country, String imdbRating, String imdbVotes,
+                 String director, String actors, String plot, String awards, String rated, String runtime,
+                 List<String> genres, List<String> images) {
+
+        this.id = id;
+        this.title = title;
+        this.year = year;
+        this.country = country;
+        this.imdbRating = imdbRating;
+        this.imdbVotes = imdbVotes;
+        this.director = director;
+        this.actors = actors;
+        this.plot = plot;
+        this.awards = awards;
+        this.rated = rated;
+        this.runtime = runtime;
+        this.genres = genres;
+        this.images = images;
+    }
+
+    // Constructor ساده
+    public Movie(Long id, String title) {
+        this.id = id;
+        this.title = title;
+    }
+
+    // Getters and Setters
+    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 String getYear() { return year; }
+    public void setYear(String year){ this.year = year;}
+    public String getCountry() { return country; }
+    public void setCountry(String country) { this.country = country; }
+
+    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 getMetascore() { return metascore; }
+    public void setMetascore(String metascore) { this.metascore = metascore; }
+
+    public String getImdbId() { return imdbId; }
+    public void setImdbId(String imdbId) { this.imdbId = imdbId; }
+
+    public String getReleased() { return released; }
+    public void setReleased(String released) { this.released = released; }
+
+    public String getType() { return type; }
+    public void setType(String type) { this.type = type; }
+
+    public void setImdbVotes(String imdbVotes) {
+        this.imdbVotes = imdbVotes;
+    }
+
+    public String getWriter() { return writer; }
+    public void setWriter(String writer) { this.writer = writer; }
+
+    public String getImdbRating() { return imdbRating; }
+    public String getImdbVotes() { return imdbVotes; }
+    public String getDirector() { return director; }
+    public String getActors() { return actors; }
+    public String getPlot() { return plot; }
+    public String getAwards() { return awards; }
+    public String getRated() { return rated; }
+    public String getRuntime() { return runtime; }
+    public String getGenre() { return genres != null ? String.join(", ", genres) : "N/A";
+    }
 }

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

@@ -87,106 +87,77 @@ 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
+            // ۱. گرفتن داده از API
+            String jsonResponse = getMoviesByGenreList(genreId, page);
+            if (jsonResponse == null) return;
+
+            // ۲. تبدیل به شیء JSON
+            JsonObject root = JsonParser.parseString(jsonResponse).getAsJsonObject();
+            JsonArray moviesArray = root.getAsJsonArray("movies");
+
+            // ۳. تبدیل JSON به لیست اشیاء Movie
+            Gson gson = new Gson();
+            Type listType = new TypeToken<ArrayList<Movie>>(){}.getType();
+            List<Movie> movies = gson.fromJson(moviesArray, listType);
+
+            // ۴. چاپ لیست
+            for (Movie m : movies) {
+                System.out.println("ID: " + m.getId() + " | " + m.getTitle() + " (" + m.getYear() + ")");
+            }
+
+            // ۵. چاپ متادیتا
+            System.out.println("Total: " + root.get("total").getAsInt() +
+                    " | Total Pages: " + root.get("total_pages").getAsInt());
 
         } catch (Exception e) {
             System.err.println("ERROR: " + e.getMessage());
         }
     }
 
-
     /**
      * 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();
+            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());
 
-            return null;
+            if (response.statusCode() == 200) return response.body();
         } 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:
+            Gson gson = new Gson();
+            // تبدیل JSON به آبجکت Movie
+            Movie m = gson.fromJson(jsonResponse, Movie.class);
+
+            // چاپ با فرمت خواسته شده
+            System.out.println("=======================================================================");
+            System.out.println("                     " + m.getTitle().toUpperCase() + " (" + m.getYear() + ")");
+            System.out.println("=======================================================================");
+            System.out.println("Rating: " + m.getImdbRating() + "/10  |  Votes: " + m.getImdbVotes());
+            System.out.println("Director: " + m.getDirector());
+            System.out.println("Cast: " + m.getActors());
+            System.out.println("Genre: " + m.getGenre());
+            System.out.println("Runtime: " + m.getRuntime() + " | Rated: " + m.getRated());
+            System.out.println("Plot: " + m.getPlot());
+            System.out.println("Awards: " + m.getAwards());
+            System.out.println("=======================================================================");
         } catch (Exception e) {
             System.err.println("ERROR parsing movie details: " + e.getMessage());
         }
-    }
+        }
 }