develop #1
@@ -54,27 +54,27 @@ public class Rational {
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// TODO: Instance method - this - other
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// Formula: a/b - c/d = (a*d - c*b) / (b*d)
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public Rational subtract(Rational other) {
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// YOUR CODE HERE
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return null; // Remove this line when implemented
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int newNumerator = this.numerator * other.denominator - other.numerator * this.denominator;
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int newDenominator = this.denominator * other.denominator;
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return new Rational(newNumerator, newDenominator);
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}
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// TODO: Static method - r1 - r2
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public static Rational subtract(Rational r1, Rational r2) {
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// YOUR CODE HERE
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return null; // Remove this line when implemented
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return r1.subtract(r2);
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}
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// TODO: Instance method - this * other
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// Formula: (a/b) * (c/d) = (a*c) / (b*d)
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public Rational multiply(Rational other) {
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// YOUR CODE HERE
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return null; // Remove this line when implemented
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int newNumerator = this.numerator * other.numerator;
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int newDenominator = this.denominator * other.denominator;
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return new Rational(newNumerator, newDenominator);
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}
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// TODO: Static method - r1 * r2
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public static Rational multiply(Rational r1, Rational r2) {
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// YOUR CODE HERE
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return null; // Remove this line when implemented
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return r1.multiply(r2);
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}
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// TODO: Instance method - this / other
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@@ -83,13 +83,17 @@ public class Rational {
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// YOUR CODE HERE
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// HINT: Division is multiplication by reciprocal
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// Don't forget to check if other.numerator is zero!
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return null; // Remove this line when implemented
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if (other.numerator == 0) {
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throw new ArithmeticException("Cannot divide by zero.");
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}
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Rational otherReciprocal = new Rational(other.denominator, other.numerator);
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return this.multiply(otherReciprocal);
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}
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// TODO: Static method - r1 / r2
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public static Rational divide(Rational r1, Rational r2) {
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// YOUR CODE HERE
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return null; // Remove this line when implemented
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return r1.divide(r2);
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}
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// PROVIDED - String representation
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@@ -22,14 +22,16 @@ public class Main {
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case 2:
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// TODO: Get genre ID and page from user, then call movieService.displayMoviesByGenre()
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Long genreID = getLongInput("Enter genre ID: ");
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Long pageNumber = getLongInput("Enter page number: ");
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movieService.displayMoviesByGenre(genreID, pageNumber);
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break;
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case 3:
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// TODO (BONUS): Get movie ID from user, then call movieService.displayMovieDetails()
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Long movieId = getLongInput("Enter movie ID: ");
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movieService.displayMovieDetails(movieId);
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break;
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case 0:
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@@ -45,7 +47,6 @@ public class Main {
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if (running) {
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System.out.println("\nPress Enter to continue...");
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scanner.nextLine();
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scanner.nextLine();
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}
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}
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@@ -15,10 +15,177 @@ public class Movie {
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private String year;
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private String imdb_rating;
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private String country;
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private String actors;
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private String awards;
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private String director;
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private String imdb_id;
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private String imdb_votes;
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private String metascore;
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private String plot;
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private String rated;
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private String released;
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private String runtime;
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private String type;
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private String writer;
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// TODO: Create a constructor with all fields
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public Movie(Long id, String title, List<String> genres, List<String> images, String year, String imdb_rating, String country){
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this.id = id;
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this.title = title;
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this.genres = genres;
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this.images = images;
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this.year = year;
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this.imdb_rating = imdb_rating;
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this.country = country;
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}
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// Added constructor with all old and new fields
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public Movie(Long id, String title, List<String> genres, List<String> images, String year, String imdb_rating, String country,
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String actors, String awards, String director, String imdb_id, String imdb_votes, String metascore,
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String plot, String rated, String released, String runtime, String type, String writer){
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this.id = id;
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this.title = title;
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this.genres = genres;
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this.images = images;
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this.year = year;
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this.imdb_rating = imdb_rating;
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this.country = country;
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this.actors = actors;
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this.awards = awards;
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this.director = director;
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this.imdb_id = imdb_id;
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this.imdb_votes = imdb_votes;
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this.metascore = metascore;
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this.plot = plot;
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this.rated = rated;
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this.released = released;
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this.runtime = runtime;
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this.type = type;
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this.writer = writer;
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}
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// TODO: Create a simple constructor with id and title only
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public Movie(Long id, String title){
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this.id = id;
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this.title = title;
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}
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// TODO: Create getters and setters for all fields
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}
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// Getters
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public Long getId() {
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return id;
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}
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public String getTitle() {
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return title;
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}
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public List<String> getGenres() {
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return genres;
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}
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public List<String> getImages() {
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return images;
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}
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public String getYear() {
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return year;
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}
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public String getImdb_rating() {
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return imdb_rating;
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}
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public String getCountry() {
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return country;
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}
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public String getActors() {
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return actors;
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}
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public String getAwards() {
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return awards;
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}
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public String getDirector() {
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return director;
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}
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public String getImdb_id() {
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return imdb_id;
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}
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public String getImdb_votes() {
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return imdb_votes;
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}
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public String getMetascore() {
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return metascore;
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}
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public String getPlot() {
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return plot;
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}
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public String getRated() {
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return rated;
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}
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public String getReleased() {
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return released;
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}
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public String getRuntime() {
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return runtime;
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}
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public String getType() {
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return type;
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}
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public String getWriter() {
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return writer;
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}
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// Setters
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public void setId(Long id) {
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this.id = id;
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}
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public void setTitle(String title) {
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this.title = title;
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}
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public void setGenres(List<String> genres) {
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this.genres = genres;
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}
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public void setImages(List<String> images) {
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this.images = images;
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}
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public void setYear(String year) {
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this.year = year;
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}
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public void setImdb_rating(String imdb_rating) {
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this.imdb_rating = imdb_rating;
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}
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public void setCountry(String country) {
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this.country = country;
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}
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public void setActors(String actors) {
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this.actors = actors;
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}
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public void setAwards(String awards) {
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this.awards = awards;
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}
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public void setDirector(String director) {
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this.director = director;
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}
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public void setImdb_id(String imdb_id) {
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this.imdb_id = imdb_id;
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}
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public void setImdb_votes(String imdb_votes) {
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this.imdb_votes = imdb_votes;
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}
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public void setMetascore(String metascore) {
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this.metascore = metascore;
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}
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public void setPlot(String plot) {
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this.plot = plot;
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}
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public void setRated(String rated) {
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this.rated = rated;
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}
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public void setReleased(String released) {
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this.released = released;
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}
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public void setRuntime(String runtime) {
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this.runtime = runtime;
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}
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public void setType(String type) {
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this.type = type;
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}
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public void setWriter(String writer) {
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this.writer = writer;
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}
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}
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@@ -106,7 +106,21 @@ public class MovieService {
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// TODO: Write your code here
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// All parsing code must be inside try-catch
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try {
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// Your code here
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JsonObject moviesObject = JsonParser.parseString(getMoviesByGenreList(genreId, page)).getAsJsonObject();JsonArray moviesArray = moviesObject.getAsJsonArray("movies");
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for (JsonElement element : moviesArray) {
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JsonObject movieObj = element.getAsJsonObject();
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long id = movieObj.get("id").getAsLong();
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String title = movieObj.get("title").getAsString();
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String year = movieObj.get("year").getAsString();
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System.out.println("ID: " + id + " | " + title + " | year: " + year);
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}
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// Print total and total_pages
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long total = moviesObject.get("total").getAsLong();
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long totalPages = moviesObject.get("total_pages").getAsLong();
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System.out.println("Total: " + total + "| Total Pages: " + totalPages);
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} catch (Exception e) {
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System.err.println("ERROR: " + e.getMessage());
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@@ -125,8 +139,10 @@ public class MovieService {
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// HttpRequest request = HttpRequest.newBuilder().uri(URI.create(url)).build();
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// HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
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// if (response.statusCode() == 200) return response.body();
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return null;
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String url = MOVIE_BY_ID_URL + movieId;
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HttpRequest request = HttpRequest.newBuilder().uri(URI.create(url)).build();
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HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
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if (response.statusCode() == 200) return response.body();
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} catch (Exception e) {
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System.out.println("!!Exception : " + e.getMessage());
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}
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@@ -181,10 +197,21 @@ public class MovieService {
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return;
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}
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try {
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// TODO: Parse jsonResponse to JsonObject
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// HINT: Use JsonParser.parseString(jsonResponse).getAsJsonObject()
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// TODO: use Gson to parse the json
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// Your code here:
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Gson gson = new Gson();
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Movie movie = gson.fromJson(jsonResponse, Movie.class);
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System.out.println("\n=======================================================================");
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System.out.println(" " + movie.getTitle() + " (" + movie.getYear() + ")");
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System.out.println("=======================================================================");
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System.out.println("Rating: " + movie.getImdb_rating() + "/10 | Votes: " + movie.getImdb_votes());
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System.out.println("Director: " + movie.getDirector());
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System.out.println("Cast: " + movie.getActors());
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System.out.println("Genre: " + String.join(", ", movie.getGenres()));
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System.out.println("Runtime: " + movie.getRuntime() + " min | Rated: " + movie.getRated());
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System.out.println("Country: " + movie.getCountry() + " | Released: " + movie.getReleased());
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System.out.println("Plot: " + movie.getPlot());
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System.out.println("Awards: " + movie.getAwards());
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System.out.println("=======================================================================\n");
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} catch (Exception e) {
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System.err.println("ERROR parsing movie details: " + e.getMessage());
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}
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Reference in New Issue
Block a user