add Rational

This commit is contained in:
2026-04-23 01:32:34 +03:30
parent 46fdb36a09
commit e3d18097cd
6 changed files with 115 additions and 0 deletions
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package MathMethods;
public class Rational {
private int numerator;
private int denominator;
// Constructor
public Rational(int numerator, int denominator) {
if (denominator == 0) {
throw new IllegalArgumentException("Denominator cannot be zero");
}
this.numerator = numerator;
this.denominator = denominator;
simplify();
}
// GCD helper for simplification
private int gcd(int a, int b) {
a = Math.abs(a);
b = Math.abs(b);
while (b != 0) {
int temp = b;
b = a % b;
a = temp;
}
return a;
}
// Simplify the fraction
private void simplify() {
int gcd = gcd(numerator, denominator);
numerator /= gcd;
denominator /= gcd;
// Keep denominator positive
if (denominator < 0) {
numerator = -numerator;
denominator = -denominator;
}
}
// ✅ COMPLETED - Instance method: this + other
public Rational add(Rational other) {
int newNumerator = this.numerator * other.denominator + other.numerator * this.denominator;
int newDenominator = this.denominator * other.denominator;
return new Rational(newNumerator, newDenominator);
}
// ✅ COMPLETED - Static method: r1 + r2
public static Rational add(Rational r1, Rational r2) {
return r1.add(r2);
}
// 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
}
// TODO: Static method - r1 - r2
public static Rational subtract(Rational r1, Rational r2) {
// YOUR CODE HERE
return null; // Remove this line when implemented
}
// 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
}
// TODO: Static method - r1 * r2
public static Rational multiply(Rational r1, Rational r2) {
// YOUR CODE HERE
return null; // Remove this line when implemented
}
// 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
}
// TODO: Static method - r1 / r2
public static Rational divide(Rational r1, Rational r2) {
// YOUR CODE HERE
return null; // Remove this line when implemented
}
// ✅ PROVIDED - String representation
@Override
public String toString() {
if (denominator == 1) {
return numerator + "";
}
return numerator + "/" + denominator;
}
// ✅ PROVIDED - Decimal value
public double toDouble() {
return (double) numerator / denominator;
}
}
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package movie.apis;
public class Genre {
//TODO
}
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package movie.apis;
public class Main {
public static void main(String[] args) {
// TODO: Receive your data from here
}
}
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package movie.apis;
public class Movie {
//TODO
}
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package movie.apis;
import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.util.ArrayList;
public class MovieService {
private final static String GENRES_URL = "https://moviesapi.ir/api/v1/genres";
private static String MOVIES_BY_GENRE_URL = "https://moviesapi.ir/api/v1/genres/";
private final static String MOVIE_INFO = "https://moviesapi.ir/api/v1/movies/{movie_id}";//todo fazel
private final static HttpClient client = HttpClient.newHttpClient();
private ArrayList<Movie> moviesList;
private ArrayList<Genre> genresList;
private String getGenresList() {
try {
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create(GENRES_URL))
.build();
HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
if (response.statusCode() == 200) {
System.out.println("Genres List received successfully");
return response.body();
} else {
throw new IOException("HTTP error code: " + response.statusCode());
}
} catch (Exception e) {
System.out.println("!!Exception : " + e.getMessage());
}
return null;
}
private String getMoviesByGenreList(Long genreId, Long page) {
try {
MOVIES_BY_GENRE_URL = MOVIES_BY_GENRE_URL + genreId + "/movies?page=" + page;
HttpRequest request = HttpRequest.newBuilder()
.uri(URI.create(MOVIES_BY_GENRE_URL))
.build();
HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
if (response.statusCode() == 200) {
System.out.println("Movies By Genre received successfully");
return response.body();
} else {
throw new IOException("HTTP error code: " + response.statusCode());
}
} catch (Exception e) {
System.out.println("!!Exception : " + e.getMessage());
}
return null;
}
// TODO: Write a method that parses the JSON returned by getGenresList() into a list of Genre objects.
// TODO: Write a method that displays the list of genres.
// TODO: Write a method whose inputs are genreId and page, and returns a list of movies for that genre and page.
// TODO: Write a method that displays the genres of a specific movie.
}