Merge pull request 'matin mortazavi' (#1) from develop into main

Excellent work. All mandatory tasks have been implemented correctly. The code quality is great. Well done!(100/100)

src/main/java/Rational/Rational.java

@@ -55,26 +55,42 @@ public class Rational {
     // 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)-((this.denominator)*other.numerator) ;
+        int NewDenominator = (this.denominator)*other.denominator;
+
+        return new Rational(NewNumerator ,NewDenominator);
+
+
+        // Remove this line when implemented
     }
 
     // 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)-(r1.denominator* r2.numerator) ;
+        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) {
+        int NewNumerator = r1.numerator* r2.numerator ;
+        int NewDenominator = r1.denominator* r2.denominator ;
+
+        return new Rational(NewNumerator ,NewDenominator);
         // YOUR CODE HERE
-        return null; // Remove this line when implemented
+        //return null; // Remove this line when implemented
     }
 
     // TODO: Instance method - this / other
@@ -83,13 +99,32 @@ public class Rational {
         // 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
+       // return null; // Remove this line when implemented
+        if (other.numerator == 0 )
+        {
+            throw new ArithmeticException("cannot divide ") ;
+        }
+        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 ") ;
+        }
+        int NewNumerator = r1.numerator * r2.denominator ;
+        int NewDenominator = r1.denominator * r2.numerator ;
+        return new Rational(NewNumerator ,NewDenominator);
+
+
+        //return null; // Remove this line when implemented
     }
 
     //  PROVIDED - String representation

src/main/java/movie/apis/Genre.java

@@ -4,9 +4,11 @@ public class Genre {
     private Long id;
     private String name;
 
-    public Genre(Long id, String name) {
+    public Genre(Long id, String name ) {
+
         this.id = id;
         this.name = name;
+
     }
 
     public Genre() {
@@ -28,6 +30,9 @@ public class Genre {
         this.name = name;
     }
 
+
+
+
     @Override
     public String toString() {
         return id + ". " + name;

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

@@ -22,12 +22,19 @@ 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;

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

@@ -17,6 +17,76 @@ public class Movie {
     private String country;
 
     // 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 ;
+    }
+    public Movie(Long id , String title)
+    {
+        this.id = id ;
+        this.title = title ;
+    }
+    public Movie(){}
+    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 ;
+    }
+
 
     // TODO: Create a simple constructor with id and title only
 

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

@@ -107,7 +107,23 @@ public class MovieService {
         // All parsing code must be inside try-catch
         try {
             // Your code here
-
+            String json_res = getMoviesByGenreList(genreId , page);
+            if (json_res == null)
+            {
+                System.out.println("no data ");
+                return;
+            }
+            JsonObject root  = JsonParser.parseString(json_res).getAsJsonObject() ;
+            JsonArray movie_arr = root.getAsJsonArray("movies") ;
+            Gson gson = new Gson() ;
+            Type movieListType = new TypeToken<ArrayList<Movie>>(){}.getType();
+            List<Movie> movies = gson.fromJson(movie_arr, movieListType);
+            long total = root.get("total").getAsLong();
+            long totalPages = root.get("total_pages").getAsLong();
+            System.out.println("Page " + page + " of " + totalPages + " (Total movies: " + total + ")");
+            for (Movie m : movies) {
+                System.out.println("ID: " + m.getId() + " | " + m.getTitle() + " (" + m.getYear() + ")");
+            }
         } catch (Exception e) {
             System.err.println("ERROR: " + e.getMessage());
         }
@@ -121,12 +137,16 @@ 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();
+             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 {
+                throw new IOException("HTTP error code: " + response.statusCode());
+            }
+
+
 
-            return null;
         } catch (Exception e) {
             System.out.println("!!Exception : " + e.getMessage());
         }
@@ -170,10 +190,12 @@ public class MovieService {
 
      */
 
-    public void displayMovieDetails(Long movieId) {
+    /*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) {
@@ -181,12 +203,19 @@ 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:
+
+
         } catch (Exception e) {
             System.err.println("ERROR parsing movie details: " + e.getMessage());
         }
     }
+            // TODO: Parse jsonResponse to JsonObject
+            // HINT: Use JsonParser.parseString(jsonResponse).getAsJsonObject()
+            // TODO: use Gson to parse the json
+            // Your code here:
+
+        } catch (Exception e) {
+            System.err.println("ERROR parsing movie details: " + e.getMessage());
+        }
+    }*/
 }