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  1. import java.util.ArrayList;
  2. import java.util.List;
  3.  
  4. class Icecream {
  5.     private String name;
  6.     private boolean hasChocolate;
  7.     private double fatPercentage;
  8.  
  9.     public Icecream(String name, boolean hasChocolate, double fatPercentage) {
  10.         this.name = name;
  11.         this.hasChocolate = hasChocolate;
  12.         this.fatPercentage = fatPercentage;
  13.     }
  14.  
  15.     public String getName() {
  16.         return name;
  17.     }
  18.  
  19.     public boolean hasChocolate() {
  20.         return hasChocolate;
  21.     }
  22.  
  23.     public double getFatPercentage() {
  24.         return fatPercentage;
  25.     }
  26.  
  27.     public static void main(String[] args) {
  28.         // Создаем список мороженого
  29.         List<Icecream> icecreams = new ArrayList<>();
  30.         icecreams.add(new Icecream("Vanilla", false, 10.0));
  31.         icecreams.add(new Icecream("Chocolate", true, 15.0));
  32.         icecreams.add(new Icecream("Strawberry", false, 8.0));
  33.         icecreams.add(new Icecream("Mint", false, 12.0));
  34.         icecreams.add(new Icecream("Chocolate Chip", true, 18.0));
  35.  
  36.         // Подсчитываем средний процент жирности и количество мороженого с шоколадом
  37.         double totalFatPercentage = 0;
  38.         int chocolateCount = 0;
  39.  
  40.         for (Icecream icecream : icecreams) {
  41.             totalFatPercentage += icecream.getFatPercentage();
  42.             if (icecream.hasChocolate()) {
  43.                 chocolateCount++;
  44.             }
  45.         }
  46.  
  47.         double averageFatPercentage = totalFatPercentage / icecreams.size();
  48.  
  49.         System.out.println("Средний процент жирности: " + averageFatPercentage);
  50.         System.out.println("Количество мороженого с шоколадом: " + chocolateCount);
  51.     }
  52. }
  53.  
Success #stdin #stdout 0.12s 55700KB
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Средний процент жирности: 12.6
Количество мороженого с шоколадом: 2
https://ideone.com/xr53K0
language:
Java (HotSpot 12)
created:
17 days ago
visibility:
public

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