Complete HW-03: implement Movie Explorer with API integration and Rational class for rational numbers #1
@@ -54,42 +54,45 @@ 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");
|
||||
}
|
||||
else {
|
||||
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
|
||||
|
||||
@@ -21,11 +21,13 @@ public class Main {
|
||||
break;
|
||||
|
||||
case 2:
|
||||
// TODO: Get genre ID and page from user, then call movieService.displayMoviesByGenre()
|
||||
System.out.println("\n--- Get Movies by Genre ---");
|
||||
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()
|
||||
|
||||
|
||||
@@ -16,9 +16,70 @@ public class Movie {
|
||||
private String imdb_rating;
|
||||
private String country;
|
||||
|
||||
// TODO: Create a constructor with all fields
|
||||
|
||||
// TODO: Create a simple constructor with id and title only
|
||||
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
|
||||
}
|
||||
|
||||
public Movie(Long id, String title) {
|
||||
this.id = id;
|
||||
this.title = title;
|
||||
}
|
||||
|
||||
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;
|
||||
}
|
||||
}
|
||||
@@ -103,10 +103,31 @@ public class MovieService {
|
||||
* 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
|
||||
String jsonResponse = getMoviesByGenreList(genreId, page);
|
||||
if (jsonResponse == null) {
|
||||
System.out.println("No data received from server.");
|
||||
return;
|
||||
}
|
||||
JsonObject rootObject = JsonParser.parseString(jsonResponse).getAsJsonObject();
|
||||
|
||||
int total = rootObject.get("total").getAsInt();
|
||||
int totalPages = rootObject.get("total_pages").getAsInt();
|
||||
System.out.println("🎬 Total Movies: " + total);
|
||||
System.out.println("📄 Total Pages: " + totalPages);
|
||||
|
||||
JsonArray moviesArray = rootObject.getAsJsonArray("movies");
|
||||
|
||||
for (int i = 0; i < moviesArray.size(); i++) {
|
||||
JsonObject movie = moviesArray.get(i).getAsJsonObject();
|
||||
|
||||
long id = movie.get("id").getAsLong();
|
||||
String title = movie.get("title").getAsString();
|
||||
String year = movie.get("year").getAsString();
|
||||
|
||||
System.out.println("ID: " + id + " | " + title + " (" + year + ")");
|
||||
}
|
||||
|
||||
|
||||
} catch (Exception e) {
|
||||
System.err.println("ERROR: " + e.getMessage());
|
||||
|
||||
Reference in New Issue
Block a user