SoroushZiaee/HW-03-oop-and-api
1
0
Fork 0
forked from AdvancedProgramming1404/HW-03-oop-and-api
Code Pull Requests Activity

Completed

Browse Source
This commit is contained in:
SoroushZiaee
2026-05-01 21:27:42 +03:30
parent 6a01e43eb2
commit 70e730d708
4 changed files with 189 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/main/java/Rational/Rational.java
+27 -15
View File
@@ -48,48 +48,60 @@ public class Rational {
// COMPLETED - Static method: r1 + r2
public static Rational add(Rational r1, Rational r2) {
return r1.add(r2);
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*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 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
if (r2.numerator == 0) {
throw new IllegalArgumentException("Cannot divide by zero.");
}
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
+5 -6
View File
@@ -21,21 +21,20 @@ 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:
running = false;
System.out.println("Goodbye!");
break;
default:
src/main/java/movie/apis/Movie.java
+98 -1
View File
@@ -15,10 +15,107 @@ public class Movie {
private String year;
private String imdb_rating;
private String country;
// Bonus
private String actors;
private String awards;
private String director;
private String imdb_id;
private String imdb_votes;
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(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, 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_rating = imdb_rating;
this.country = 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;
}
// 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_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; }
//Bonus
public String getActors() { return actors; }
public void setActors(String actors) { this.actors = actors; }
// TODO: Create getters and setters for all fields
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 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
+60 -18
View File
@@ -106,7 +106,24 @@ public class MovieService {
// TODO: Write your code here
// All parsing code must be inside try-catch
try {
// Your code here
String jsonResponse = getMoviesByGenreList(genreId, page);
if (jsonResponse != null) {
Gson gson = new Gson();
JsonObject jsonObject = gson.fromJson(jsonResponse, JsonObject.class);
int total = jsonObject.get("total").getAsInt();
int totalPages = jsonObject.get("total_pages").getAsInt();
System.out.println("Total Movies: " + total + " | Total Pages: " + totalPages);
System.out.println("--------------------------------------------------");
JsonArray moviesArray = jsonObject.getAsJsonArray("movies");
for (JsonElement element : moviesArray) {
Movie movie = gson.fromJson(element, Movie.class);
System.out.println("ID: " + movie.getId() + " | " + movie.getTitle() + " (" + movie.getYear() + ")");
}
}
} catch (Exception e) {
System.err.println("ERROR: " + e.getMessage());
@@ -118,18 +135,25 @@ 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();
public String getMovieById(Long movieId) {
String url = MOVIE_BY_ID_URL + movieId;
return null;
} catch (Exception e) {
System.out.println("!!Exception : " + e.getMessage());
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create(url))
.GET()
.build();
try {
HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
if (response.statusCode() == 200) {
return response.body();
} else {
System.out.println("Failed to fetch movie details. HTTP Status: " + response.statusCode());
}
} catch (Exception e) {
System.out.println("Error getting movie by ID: " + e.getMessage());
}
return null;
}
@@ -171,20 +195,38 @@ public class MovieService {
*/
public void displayMovieDetails(Long movieId) {
// Step 1: Get JSON response from API
System.out.println("Fetching details for movie ID " + movieId + "...");
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====================================");
System.out.println("Title: " + movie.getTitle());
System.out.println("Year: " + movie.getYear());
System.out.println("Rated: " + movie.getRated());
System.out.println("Released: " + movie.getReleased());
System.out.println("Runtime: " + movie.getRuntime());
System.out.println("Genres: " + (movie.getGenres() != null ? String.join(", ", movie.getGenres()) : "N/A"));
System.out.println("Director: " + movie.getDirector());
System.out.println("Writer: " + movie.getWriter());
System.out.println("Actors: " + movie.getActors());
System.out.println("Plot: " + movie.getPlot());
System.out.println("Country: " + movie.getCountry());
System.out.println("Awards: " + movie.getAwards());
System.out.println("IMDB Rating: " + movie.getImdb_rating() + " (Votes: " + movie.getImdb_votes() + ")");
System.out.println("Metascore: " + movie.getMetascore());
System.out.println("Type: " + movie.getType());
System.out.println("====================================\n");
} catch (Exception e) {
System.err.println("ERROR parsing movie details: " + e.getMessage());
}