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  1. abstract class Publication {
  2.     int numberOfAuthors;
  3.     public Publication(int numberOfAuthors) {
  4.         this.numberOfAuthors = numberOfAuthors;
  5.     }
  6.     public abstract double computeScore();
  7. }
  8.  
  9. class Journal extends Publication {
  10.     double impactFactor;
  11.     public Journal(int numberOfAuthors, double impactFactor) {
  12.         super(numberOfAuthors);
  13.         this.impactFactor = impactFactor;
  14.     }
  15.     @Override
  16.     public double computeScore() {
  17.         return (impactFactor * 0.5) / numberOfAuthors;
  18.     }
  19. }
  20.  
  21. class ConferenceProceeding extends Publication {
  22.     boolean isIndexed;
  23.     public ConferenceProceeding(int numberOfAuthors, boolean isIndexed) {
  24.         super(numberOfAuthors);
  25.         this.isIndexed = isIndexed;
  26.     }
  27.     @Override
  28.     public double computeScore() {
  29.         return isIndexed ? 0.25 / numberOfAuthors : 0.2 / numberOfAuthors;
  30.     }
  31. }
  32.  
  33. class Author {
  34.     String name;
  35.     java.util.List<Publication> publications = new java.util.ArrayList<>();
  36.     public Author(String name) {
  37.         this.name = name;
  38.     }
  39.     public void addPublication(Publication pub) {
  40.         publications.add(pub);
  41.     }
  42.     public double computeScore() {
  43.         double total = 0;
  44.         for (Publication pub : publications) {
  45.             total += pub.computeScore();
  46.         }
  47.         return total;
  48.     }
  49. }
  50.  
  51. class University {
  52.     java.util.List<Author> authors = new java.util.ArrayList<>();
  53.     public void addAuthor(Author author) {
  54.         authors.add(author);
  55.     }
  56.     public double computeScore() {
  57.         double total = 0;
  58.         for (Author author : authors) {
  59.             total += author.computeScore();
  60.         }
  61.         return total;
  62.     }
  63. }
  64.  
  65. public class Main {
  66.     public static void main(String[] args) {
  67.         Journal journal1 = new Journal(3, 2.5);
  68.         Journal journal2 = new Journal(4, 3.0);
  69.         ConferenceProceeding conf1 = new ConferenceProceeding(2, true);
  70.         ConferenceProceeding conf2 = new ConferenceProceeding(5, false);
  71.  
  72.         Author author1 = new Author("Alice");
  73.         Author author2 = new Author("Bob");
  74.  
  75.         author1.addPublication(journal1);
  76.         author1.addPublication(journal2);
  77.         author1.addPublication(conf1);
  78.         author1.addPublication(conf2);
  79.  
  80.         author2.addPublication(journal1);
  81.         author2.addPublication(journal2);
  82.         author2.addPublication(conf1);
  83.         author2.addPublication(conf2);
  84.  
  85.         University university = new University();
  86.         university.addAuthor(author1);
  87.         university.addAuthor(author2);
  88.  
  89.         System.out.println("Score of Author 1: " + author1.computeScore());
  90.         System.out.println("Score of Author 2: " + author2.computeScore());
  91.         System.out.println("Total score of the University: " + university.computeScore());
  92.     }
  93. }
Success #stdin #stdout 0.11s 57756KB
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Standard input is empty
stdout
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Score of Author 1: 0.9566666666666668
Score of Author 2: 0.9566666666666668
Total score of the University: 1.9133333333333336
https://ideone.com/qc0LZ6
language:
Java (HotSpot 12)
created:
22 days ago
visibility:
public

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