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  1. import java.io.IOException;
  2. import java.util.ArrayList;
  3. import java.util.Collections;
  4. import java.util.Comparator;
  5. import java.util.List;
  6.  
  7. public class Main {
  8.     public static void main(String[] args) throws IOException {
  9.         List<Film> films = new ArrayList<>();
  10.  
  11.         films.add(new Film().setRating(1));
  12.         films.add(new Film().setRating(2.5));
  13.         films.add(new Film().setRating(3.5));
  14.         films.add(new Film().setRating(4));
  15.         films.add(new Film().setRating(5));
  16.         films.add(new Film().setRating(1));
  17.         films.add(new Film().setRating(2));
  18.         films.add(new Film().setRating(3));
  19.         films.add(new Film().setRating(4));
  20.         Collections.sort(films, new Comparator<Film>() {
  21.             @Override
  22.             public int compare(Film o1, Film o2) {
  23.                 final double film1 = o1.getRating();
  24.                 final double film2 = o2.getRating();
  25.                 return film1 > film2 ? 1
  26.                         : film1 < film2 ? -1 : 0;
  27.             }
  28.         });
  29.         for (Film film : films) {
  30.             System.out.println(film);
  31.         }
  32.     }
  33. }
  34.  
  35. class Film {
  36.     double rating;
  37.  
  38.     public double getRating() {
  39.         return rating;
  40.     }
  41.  
  42.     public Film setRating(double rating) {
  43.         this.rating = rating;
  44.         return this;
  45.     }
  46.  
  47.     @Override
  48.     public String toString() {
  49.         return "Film{" +
  50.                 "rating=" + rating +
  51.                 '}';
  52.     }
  53. }
  54.  
Success #stdin #stdout 0.07s 380224KB
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stdin
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Standard input is empty
stdout
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Film{rating=1.0}
Film{rating=1.0}
Film{rating=2.0}
Film{rating=2.5}
Film{rating=3.0}
Film{rating=3.5}
Film{rating=4.0}
Film{rating=4.0}
Film{rating=5.0}
https://ideone.com/m7tHJg
language:
Java (12.0.1)
created:
11 years ago
visibility:
public

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