6 Commits
5 changed files with 98 additions and 223 deletions
+28 -53
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@@ -121,64 +121,40 @@ Understanding: You must be able to explain your implementation
## Bonus Tasks ✒️ ## Bonus Tasks ✒️
1. Fetch and display movie information using movie ID 1. Fetch and display movie information using movie ID
In this section, you must implement the ability to search for a movie by its ID. The user enters an ID, and the program displays complete movie details. Implement movie search by ID. User enters an ID, program displays complete movie details.
Movie Class Fields (already defined): ### ⚠️ First: Add Missing Fields to Movie Class
The API returns more data than your current class supports. Add these fields:
- `actors`, `awards`, `director`, `imdb_id`, `imdb_votes`, `metascore`, `plot`, `rated`, `released`, `runtime`, `type`, `writer`
- id (Long) - Movie identifier ### Implementation Steps:
- title (String) - Movie title 1. **Complete `getMovieById(movieId)`**
- Build request to: `https://api.meshcomp.ir/api/v1/movies/{movieId}`
- If status 200 → return JSON body, else → return null
- year (String) - Release year 2. **Complete `displayMovieDetails(movieId)`**
- Call `getMovieById()` → check for null
- Use Gson to parse JSON to Movie object (after adding fields above)
- Print formatted output (see example below)
- genres (List<Genre>) - List of genres ### Example Output:
```
- images (String) - Poster image URL =======================================================================
THE SHAWSHANK REDEMPTION (1994)
- country (String) - Production country =======================================================================
Rating: 9.3/10 | Votes: 1,738,596
- imdbRating (String) - IMDB rating Director: Frank Darabont
Cast: Tim Robbins, Morgan Freeman, Bob Gunton, William Sadler
Implementation Steps: Genre: Crime, Drama
Runtime: 142 min | Rated: R
- Build and Send Request (getMovieById method): Country: USA | Released: 14 Oct 1994
Plot: Two imprisoned men bond over a number of years, finding
- Create HTTP request to: https://api.meshcomp.ir/api/v1/movies/{movieId} solace and eventual redemption through acts of common decency.
Awards: Nominated for 7 Oscars. Another 19 wins & 30 nominations.
- Replace {movieId} with the ID from user =======================================================================
- Send request and get response
- Handle Response (getMovieById method):
- If status code is 200, return JSON body
- Otherwise, print error and return null
- Parse JSON and Create Movie Object (displayMovieDetails method):
- Parse JSON response to JsonObject
- Extract all fields: id, title, year, poster, country, imdb_rating
- Parse "genres" array and convert each to Genre object
- Create a Movie object with all extracted data
- Display Results (displayMovieDetails method):
- Print all movie details in a clean format
2. Advanced search (title, genre, year, rating, etc.)
3. Sorting options for movies
4. Save/load favorite movies to/from a file
5. Improved console menu design
6. GUI version using JavaFX
```
--- ---
## References 📚 ## References 📚
@@ -202,4 +178,3 @@ Jackson Tutorial:
--- ---
## Submission ⌛ ## Submission ⌛
Deadline: May 1st (11 Ordibehesht) Deadline: May 1st (11 Ordibehesht)
+17 -28
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@@ -41,9 +41,9 @@ public class Rational {
// COMPLETED - Instance method: this + other // COMPLETED - Instance method: this + other
public Rational add(Rational other) { public Rational add(Rational other) {
int newNum = this.numerator * other.denominator + other.numerator * this.denominator; int newNumerator = this.numerator * other.denominator + other.numerator * this.denominator;
int newDenom = this.denominator * other.denominator; int newDenominator = this.denominator * other.denominator;
return new Rational(newNum, newDenom); return new Rational(newNumerator, newDenominator);
} }
// COMPLETED - Static method: r1 + r2 // COMPLETED - Static method: r1 + r2
@@ -54,53 +54,42 @@ public class Rational {
// TODO: Instance method - this - other // TODO: Instance method - this - other
// Formula: a/b - c/d = (a*d - c*b) / (b*d) // Formula: a/b - c/d = (a*d - c*b) / (b*d)
public Rational subtract(Rational other) { public Rational subtract(Rational other) {
int newNum = this.numerator * other.numerator - other.numerator * this.denominator; // YOUR CODE HERE
int newDenom = other.numerator * this.denominator; return null; // Remove this line when implemented
return new Rational(newNum, newDenom);
} }
// TODO: Static method - r1 - r2 // TODO: Static method - r1 - r2
public static Rational subtract(Rational r1, Rational r2) { public static Rational subtract(Rational r1, Rational r2) {
int newNum = r1.numerator * r2.denominator - r2.numerator * r1.denominator; // YOUR CODE HERE
int newDenom = r1.denominator * r2.denominator; return null; // Remove this line when implemented
return new Rational(newNum, newDenom);
} }
// TODO: Instance method - this * other // TODO: Instance method - this * other
// Formula: (a/b) * (c/d) = (a*c) / (b*d) // Formula: (a/b) * (c/d) = (a*c) / (b*d)
public Rational multiply(Rational other) { public Rational multiply(Rational other) {
int newNum = this.numerator * other.numerator; // YOUR CODE HERE
int newDenom = this.denominator * other.denominator; return null; // Remove this line when implemented
return new Rational(newNum, newDenom);
} }
// TODO: Static method - r1 * r2 // TODO: Static method - r1 * r2
public static Rational multiply(Rational r1, Rational r2) { public static Rational multiply(Rational r1, Rational r2) {
int newNum = r1.numerator * r2.numerator; // YOUR CODE HERE
int newDenom = r1.denominator * r2.denominator; return null; // Remove this line when implemented
return new Rational(newNum, newDenom);
} }
// TODO: Instance method - this / other // TODO: Instance method - this / other
// Formula: (a/b) ÷ (c/d) = (a*d) / (b*c) // Formula: (a/b) ÷ (c/d) = (a*d) / (b*c)
public Rational divide(Rational other) { public Rational divide(Rational other) {
if (other.numerator == 0){ // YOUR CODE HERE
throw new ArithmeticException("Cannot divide by zero"); // HINT: Division is multiplication by reciprocal
} // Don't forget to check if other.numerator is zero!
int newNum = this.numerator * other.denominator; return null; // Remove this line when implemented
int newDenom = this.denominator * other.numerator;
return new Rational(newNum, newDenom);
} }
// TODO: Static method - r1 / r2 // TODO: Static method - r1 / r2
public static Rational divide(Rational r1, Rational r2) { public static Rational divide(Rational r1, Rational r2) {
if (r2.numerator == 0){ // YOUR CODE HERE
throw new ArithmeticException("Cannot divide by zero"); return null; // Remove this line when implemented
}
int newNum = r1.numerator * r2.denominator;
int newDenom = r1.denominator * r2.numerator;
return new Rational(newNum, newDenom);
} }
// PROVIDED - String representation // PROVIDED - String representation
+4 -8
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@@ -22,18 +22,14 @@ public class Main {
case 2: case 2:
// TODO: Get genre ID and page from user, then call movieService.displayMoviesByGenre() // TODO: Get genre ID and page from user, then call movieService.displayMoviesByGenre()
System.out.print("Enter genre ID: ");
Long genreId = scanner.nextLong();
System.out.print("Enter page number: ");
Long page = scanner.nextLong();
movieService.displayMoviesByGenre(genreId, page);
break; break;
case 3: case 3:
// TODO (BONUS): Get movie ID from user, then call movieService.displayMovieDetails() // TODO (BONUS): Get movie ID from user, then call movieService.displayMovieDetails()
System.out.print("Enter movie ID: ");
Long movieId = scanner.nextLong();
movieService.displayMovieDetails(movieId);
break; break;
case 0: case 0:
-64
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@@ -17,72 +17,8 @@ public class Movie {
private String country; private String country;
// TODO: Create a constructor with all fields // 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 // TODO: Create a simple constructor with id and title only
public Movie(Long id, String title) {
this.id = id;
this.title = title;
}
public Movie() {
}
// TODO: Create getters and setters for all fields // 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_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;
}
} }
+46 -67
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@@ -90,7 +90,8 @@ public class MovieService {
/** /**
* TODO 1: Display movies for a specific genre and page * TODO 1: Display movies for a specific genre and page
* *
* JSON format: { "movies": [ { "id": 1, "title": "Movie", "year": "1994" } ], "total": 177, "total_pages": 18 } * 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: * Steps:
* - Call getMoviesByGenreList(genreId, page) to get JSON * - Call getMoviesByGenreList(genreId, page) to get JSON
@@ -105,27 +106,7 @@ public class MovieService {
// TODO: Write your code here // TODO: Write your code here
// All parsing code must be inside try-catch // All parsing code must be inside try-catch
try { try {
String jsonResponse = getMoviesByGenreList(genreId, page); // Your code here
if (jsonResponse == null) {
System.out.println("No movies found.");
return;
}
JsonObject rootObject = JsonParser.parseString(jsonResponse).getAsJsonObject();
JsonArray moviesArray = rootObject.getAsJsonArray("movies");
for (JsonElement element : moviesArray) {
JsonObject movieObject = element.getAsJsonObject();
Long id = movieObject.get("id").getAsLong();
String title = movieObject.get("title").getAsString();
String year = movieObject.get("year").getAsString();
System.out.println("ID: " + id + " | " + title + " (" + year + ")");
}
System.out.println("Total: " + rootObject.get("total").getAsInt());
System.out.println("Total Pages: " + rootObject.get("total_pages").getAsInt());
} catch (Exception e) { } catch (Exception e) {
System.err.println("ERROR: " + e.getMessage()); System.err.println("ERROR: " + e.getMessage());
@@ -140,72 +121,70 @@ public class MovieService {
private String getMovieById(Long movieId) { private String getMovieById(Long movieId) {
try { try {
// TODO: Complete this method // TODO: Complete this method
String url = MOVIE_BY_ID_URL + movieId; // String url = MOVIE_BY_ID_URL + movieId;
HttpRequest request = HttpRequest.newBuilder().uri(URI.create(url)).build(); // HttpRequest request = HttpRequest.newBuilder().uri(URI.create(url)).build();
HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString()); // HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
if (response.statusCode() == 200){ // if (response.statusCode() == 200) return response.body();
return response.body();
}
else {
System.out.println("Unable to fetch movie details. Status code: " + response.statusCode());
return null;
}
return null;
} catch (Exception e) { } catch (Exception e) {
System.out.println("!!Exception : " + e.getMessage()); System.out.println("!!Exception : " + e.getMessage());
} }
return null; return null;
} }
/** /*
* BONUS TODO: Display complete movie details for a given movie ID BONUS TODO: Display complete movie details for a given movie ID
*
* Expected JSON format from getMovieById(): Open this link in your browser (and check Pretty-print checkbox) to view json format:
* { https://api.meshcomp.ir/api/v1/movies/1
* "id": 1,
* "title": "The Shawshank Redemption", INSTRUCTIONS:
* "year": "1994", 1. Call getMovieById(movieId) to get the JSON response string
* "genres": ["Crime", "Drama"], 2. Check if response is null (if yes, print error and return)
* "poster": "https://moviesapi.ir/images/tt0111161_poster.jpg", 3. Parse the JSON string to JsonObject (inside try-catch)
* "country": "USA", 4. Use Gson to extract all fields from the JSON and map them to your Movie class:
* "imdb_rating": "9.3" - 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
* INSTRUCTIONS: 5. Print all movie details in a readable format
* 1. Call getMovieById(movieId) to get the JSON response
* 2. Check if response is null (if yes, print error and return) (PUT ALL PARSING CODE INSIDE THE EXISTING try-catch)
* 3. Parse the JSON string to JsonObject (inside try-catch)
* 4. Extract all fields: id, title, year, genres array, poster, country, imdb_rating
* 5. Convert genres array to comma-separated string
* 6. Print all movie details in a readable format
*
* PUT ALL PARSING CODE INSIDE THE EXISTING try-catch
*
* @param movieId The ID of the movie to display
*/ */
/* 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) { public void displayMovieDetails(Long movieId) {
// Step 1: Get JSON response from API // Step 1: Get JSON response from API
String jsonResponse = getMovieById(movieId); String jsonResponse = getMovieById(movieId);
// Step 2: Check if we got valid data // 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) { if (jsonResponse == null) {
System.out.println("Failed to get movie details for ID: " + movieId); System.out.println("Failed to get movie details for ID: " + movieId);
return; return;
} }
// Step 3-6: Parse JSON and display details (PUT YOUR CODE INSIDE try-catch)
try { try {
// TODO: Parse jsonResponse to JsonObject // TODO: Parse jsonResponse to JsonObject
// TODO: Extract id, title, year, genres array, poster, country, imdb_rating
// TODO: Convert genres array to a readable string
// TODO: Print all movie details
// HINT: Use JsonParser.parseString(jsonResponse).getAsJsonObject() // HINT: Use JsonParser.parseString(jsonResponse).getAsJsonObject()
// HINT: Use getAsJsonArray("genres") to get genres // TODO: use Gson to parse the json
// HINT: For each genre, use getAsString()
// Your code here: // Your code here:
} catch (Exception e) { } catch (Exception e) {
System.err.println("ERROR parsing movie details: " + e.getMessage()); System.err.println("ERROR parsing movie details: " + e.getMessage());
} }