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  1. import java.util.ArrayList;
  2. import java.util.Collections;
  3. import java.util.List;
  4.  
  5. class Gear {
  6.     private String name;
  7.     private double weight;
  8.     private double price;
  9.  
  10.     public Gear(String name, double weight, double price) {
  11.         this.name = name;
  12.         this.weight = weight;
  13.         this.price = price;
  14.     }
  15.  
  16.     public String getName() {
  17.         return name;
  18.     }
  19.  
  20.     public double getWeight() {
  21.         return weight;
  22.     }
  23.  
  24.     public double getPrice() {
  25.         return price;
  26.     }
  27. }
  28.  
  29. class Motorcyclist {
  30.     private List<Gear> gearList;
  31.  
  32.     public Motorcyclist() {
  33.         gearList = new ArrayList<>();
  34.     }
  35.  
  36.     public void addGear(Gear gear) {
  37.         gearList.add(gear);
  38.     }
  39.  
  40.     public List<Gear> getGearList() {
  41.         return gearList;
  42.     }
  43.  
  44.     public double calculateTotalCost() {
  45.         double totalCost = 0;
  46.         for (Gear gear : gearList) {
  47.             totalCost += gear.getPrice();
  48.         }
  49.         return totalCost;
  50.     }
  51.  
  52.     public void sortByWeight() {
  53.         Collections.sort(gearList, (gear1, gear2) -> Double.compare(gear1.getWeight(), gear2.getWeight()));
  54.     }
  55.  
  56.     public List<Gear> findGearByPriceRange(double minPrice, double maxPrice) {
  57.         List<Gear> result = new ArrayList<>();
  58.         for (Gear gear : gearList) {
  59.             if (gear.getPrice() >= minPrice && gear.getPrice() <= maxPrice) {
  60.                 result.add(gear);
  61.             }
  62.         }
  63.         return result;
  64.     }
  65. }
  66.  
  67. public class Main {
  68.     public static void main(String[] args) {
  69.         Gear helmet = new Gear("Шлем", 1.5, 100);
  70.         Gear jacket = new Gear("Куртка", 2.0, 200);
  71.         Gear pants = new Gear("Штаны", 1.8, 150);
  72.         Gear gloves = new Gear("Перчатки", 0.5, 50);
  73.  
  74.         Motorcyclist motorcyclist = new Motorcyclist();
  75.  
  76.         motorcyclist.addGear(helmet);
  77.         motorcyclist.addGear(jacket);
  78.         motorcyclist.addGear(pants);
  79.         motorcyclist.addGear(gloves);
  80.  
  81.         System.out.println("Общая стоимость экипировки: " + motorcyclist.calculateTotalCost());
  82.  
  83.         motorcyclist.sortByWeight();
  84.  
  85.         System.out.println("Амуниция после сортировки по весу:");
  86.         for (Gear gear : motorcyclist.getGearList()) {
  87.             System.out.println(gear.getName() + " - Вес: " + gear.getWeight());
  88.         }
  89.  
  90.         double minPrice = 50;
  91.         double maxPrice = 150;
  92.         List<Gear> gearInRange = motorcyclist.findGearByPriceRange(minPrice, maxPrice);
  93.  
  94.         System.out.println("Амуниция в диапазоне цен от " + minPrice + " до " + maxPrice + ":");
  95.         for (Gear gear : gearInRange) {
  96.             System.out.println(gear.getName() + " - Цена: " + gear.getPrice());
  97.         }
  98.     }
  99. }
Success #stdin #stdout 0.22s 60636KB
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stdout
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Общая стоимость экипировки: 500.0
Амуниция после сортировки по весу:
Перчатки - Вес: 0.5
Шлем - Вес: 1.5
Штаны - Вес: 1.8
Куртка - Вес: 2.0
Амуниция в диапазоне цен от 50.0 до 150.0:
Перчатки - Цена: 50.0
Шлем - Цена: 100.0
Штаны - Цена: 150.0
https://ideone.com/3bhDWq
language:
Java (HotSpot 12)
created:
18 days ago
visibility:
public

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