implement all TODOs exept bonus #1

Closed
emad wants to merge 1 commits from develop into main
4 changed files with 113 additions and 14 deletions
+17 -11
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@@ -54,27 +54,27 @@ 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) {
// YOUR CODE HERE int num = this.numerator * other.denominator - this.denominator * other.numerator ;
return null; // Remove this line when implemented int den = this.denominator * other.denominator;
return new Rational(num, den);
} }
// 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) {
// YOUR CODE HERE return r1.subtract(r2);
return null; // Remove this line when implemented
} }
// 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) {
// YOUR CODE HERE int num = this.numerator * other.numerator;
return null; // Remove this line when implemented int den = this.denominator * other.denominator;
return new Rational(num, den);
} }
// 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) {
// YOUR CODE HERE return r1.multiply(r2);
return null; // Remove this line when implemented
} }
// TODO: Instance method - this / other // TODO: Instance method - this / other
@@ -83,13 +83,19 @@ public class Rational {
// YOUR CODE HERE // YOUR CODE HERE
// HINT: Division is multiplication by reciprocal // HINT: Division is multiplication by reciprocal
// Don't forget to check if other.numerator is zero! // Don't forget to check if other.numerator is zero!
return null; // Remove this line when implemented if (other.numerator == 0)
{
throw new ArithmeticException("The divisor must not be zero");
}
int num = this.numerator * other.denominator;
int den = this.denominator * other.numerator;
return new Rational(num, den);
} }
// 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) {
// YOUR CODE HERE return r1.divide(r2);
return null; // Remove this line when implemented
} }
// PROVIDED - String representation // PROVIDED - String representation
+3 -1
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@@ -22,7 +22,9 @@ 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()
long generId = getLongInput("Enter the ID: ");
long page = getLongInput("Enter the page: ");
movieService.displayMoviesByGenre(generId, page);
break; break;
+74 -1
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@@ -16,9 +16,82 @@ public class Movie {
private String imdb_rating; private String imdb_rating;
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;
}
// TODO: Create getters and setters for all fields // TODO: Create getters and setters for all fields
public List<String> getGenres() {
return genres;
}
public void setGenres(List<String> genres) {
this.genres = genres;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getImdb_rating() {
return imdb_rating;
}
public void setImdb_rating(String imdb_rating) {
this.imdb_rating = imdb_rating;
}
public List<String> getImages() {
return images;
}
public void setImages(List<String> images) {
this.images = images;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String getYear() {
return year;
}
public void setYear(String year) {
this.year = year;
}
} }
+19 -1
View File
@@ -106,7 +106,23 @@ 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 {
// Your code here String json = getMoviesByGenreList(genreId, page);
JsonElement j = JsonParser.parseString(json);
JsonObject obj = j.getAsJsonObject();
JsonArray movies = obj.getAsJsonArray("movies");
for(int i = 0; i < movies.size(); i ++)
{
JsonObject movie = movies.get(i).getAsJsonObject();
long id = movie.get("id").getAsLong();
String title = movie.get("title").getAsString();
int year = movie.get("year").getAsInt();
System.out.printf("ID: %d | %s (%d)\n", id, title, year);
}
System.out.println();
int total = obj.get("total").getAsInt();
int totalPages = obj.get("total_pages").getAsInt();
System.out.printf("Total: %d\n", total);
System.out.printf("Total pages: %d", totalPages);
} catch (Exception e) { } catch (Exception e) {
System.err.println("ERROR: " + e.getMessage()); System.err.println("ERROR: " + e.getMessage());
@@ -189,4 +205,6 @@ public class MovieService {
System.err.println("ERROR parsing movie details: " + e.getMessage()); System.err.println("ERROR parsing movie details: " + e.getMessage());
} }
} }
} }