faraz_ardeh/HW-03-oop-and-api
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Complete Home Work 3

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faraz_ardeh
2026-06-16 16:42:24 +03:30
parent 6a01e43eb2
commit 83f631bc43
5 changed files with 252 additions and 38 deletions
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pom.xml
+2 -2
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@@ -9,8 +9,8 @@
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>23</maven.compiler.source>
<maven.compiler.target>23</maven.compiler.target>
<maven.compiler.source>21</maven.compiler.source>
<maven.compiler.target>21</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
src/main/java/Rational/Rational.java
+15 -14
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@@ -54,42 +54,43 @@ 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
return r1.subtract(r2);
}
// 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
return r1.multiply(r2);
}
// 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("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
src/main/java/movie/apis/Main.java
+5 -5
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@@ -21,15 +21,15 @@ 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
+185 -5
View File
@@ -4,7 +4,8 @@ import java.util.List;
/**
* Model class representing a movie
* Fields: id, title, genres, images
* Fields: id, title, genres, images, year, imdb_rating, country
* Bonus fields: actors, awards, director, imdb_id, imdb_votes, metascore, plot, rated, released, runtime, type, writer
*/
public class Movie {
@@ -16,9 +17,188 @@ public class Movie {
private String imdb_rating;
private String country;
// TODO: Create a constructor with all fields
// Bonus fields
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 simple constructor with id and title only
// 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 getters and setters for all fields
}
// Simple constructor with id and title only
public Movie(Long id, String title) {
this.id = id;
this.title = title;
}
// 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;
}
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 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
+45 -12
View File
@@ -106,7 +106,29 @@ 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) {
System.out.println("Failed to get movies for genre ID: " + genreId);
return;
}
JsonObject rootObject = JsonParser.parseString(jsonResponse).getAsJsonObject();
JsonArray moviesArray = rootObject.getAsJsonArray("movies");
int total = rootObject.get("total").getAsInt();
int totalPages = rootObject.get("total_pages").getAsInt();
System.out.println("\nMovies (Page " + page + " of " + totalPages + ", Total: " + total + "):");
System.out.println("---------------------------------------");
for (JsonElement element : moviesArray) {
JsonObject movieObject = element.getAsJsonObject();
Long id = movieObject.get("id").getAsLong();
String title = movieObject.get("title").getAsString();
String year = movieObject.has("year") ? movieObject.get("year").getAsString() : "N/A";
System.out.println("ID: " + id + " | " + title + " (" + year + ")");
}
System.out.println();
} catch (Exception e) {
System.err.println("ERROR: " + e.getMessage());
@@ -120,13 +142,10 @@ 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();
} catch (Exception e) {
System.out.println("!!Exception : " + e.getMessage());
}
@@ -181,10 +200,24 @@ 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:
Gson gson = new Gson();
Movie movie = gson.fromJson(jsonResponse, Movie.class);
String header = movie.getTitle().toUpperCase() + " (" + movie.getYear() + ")";
String genres = (movie.getGenres() != null) ? String.join(", ", movie.getGenres()) : "N/A";
System.out.println(" =======================================================================");
System.out.println(" " + header);
System.out.println(" =======================================================================");
System.out.println(" Rating: " + movie.getImdb_rating() + "/10 | Votes: " + movie.getImdb_votes());
System.out.println(" Director: " + movie.getDirector());
System.out.println(" Cast: " + movie.getActors());
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());
System.out.println(" =======================================================================");
} catch (Exception e) {
System.err.println("ERROR parsing movie details: " + e.getMessage());
}