GnesnyDmitry · May 7, 2024
diff --git a/src/main/java/Calculator.java b/src/main/java/Calculator.java
@@ -0,0 +1,12 @@
+import java.util.List;
+
+public class Calculator {
+     static double divider(List<Food> listOfFood, int numberOfPeople) {
+          double total = 0;
+
+          for ( Food food : listOfFood) {
+               total += food.getPrice();
+          }
+          return total / numberOfPeople;
+     }
+}
diff --git a/src/main/java/Food.java b/src/main/java/Food.java
@@ -0,0 +1,21 @@
+public class Food {
+    private String name;
+    private Double price;
+
+    public Food(String name, Double price) {
+        this.name = name;
+        this.price = price;
+    }
+    public Double getPrice() {
+        return price;
+    }
+    public String getName(String name) {
+        return name;
+    }
+
+    @Override
+    public String toString() {
+        return "{name='" + name + "', price=" + price + "}";
+    }
+
+}
diff --git a/src/main/java/Main.java b/src/main/java/Main.java
@@ -1,6 +1,46 @@
+import java.util.Scanner;
 
 public class Main {
+
     public static void main(String[] args) {
-        System.out.println("Hello world!");
+        Scanner scanner = new Scanner(System.in);
+
+
+        System.out.println("Введите количество людей, на которых нужно разделить счет:");
+
+        int peopleCount = Validator.getPeopleCount();
+
+
+        ProductManager manager = new ProductManager();
+        while (true) {
+            System.out.println("Введите название товара:");
+            String foodName = Validator.getFoodName();
+
+            System.out.println("Введите стоимость товара в формате рубли,копейки (например 10,45 или 11,40):");
+            double foodPrice = Validator.getFoodPrice();
+
+            Food food = new Food(foodName, foodPrice);
+            manager.addFood(food);
+            System.out.println("Вы ввели товар: " + foodName);
+            System.out.println("Стоимость товара: " + RubFormat.rubFormat(foodPrice));
+
+            System.out.println("Если не хотите добавлять товар: " + "'" + "Завершить" + "' " + "или любой символ, чтобы добавить еще");
+            String exit = scanner.next();
+            if (Validator.checkOnExit(exit)) {
+                    manager.printFoods();
+                break;
+            }
+        }
+
+        double total = Calculator.divider(manager.getListOfFood(), peopleCount);
+
+        System.out.println("Каждый должен заплатить по: " + RubFormat.rubFormat(total));
     }
+
+
+
+
+
+
+
 }
diff --git a/src/main/java/ProductManager.java b/src/main/java/ProductManager.java
@@ -0,0 +1,23 @@
+import java.util.ArrayList;
+import java.util.List;
+
+public class ProductManager {
+    private List<Food> listOfFood;
+
+    public ProductManager() {
+        listOfFood = new ArrayList<>();
+    }
+    public List<Food> getListOfFood() {
+        return listOfFood;
+    }
+
+    public void addFood(Food food) {
+        listOfFood.add(food);
+    }
+    public void printFoods() {
+        System.out.println("Добавленные товары:");
+        for (Food food : listOfFood) {
+            System.out.println(food.toString());
+        }
+    }
+}
diff --git a/src/main/java/RubFormat.java b/src/main/java/RubFormat.java
@@ -0,0 +1,19 @@
+public class RubFormat {
+    static public String rubFormat(double rub) {
+        String ending;
+        int rubles = (int) rub;
+        int lastDigit = rubles % 10;
+        int lastTwoDigits = rubles % 100;
+
+        if (lastDigit == 1 && lastTwoDigits != 11) {
+            ending = "рубль";
+        } else if (lastDigit >= 2 && lastDigit <= 4 && (lastTwoDigits < 12 || lastTwoDigits > 14)) {
+            ending = "рубля";
+        } else {
+            ending = "рублей";
+        }
+
+        return String.format("%.2f %s", rub, ending);
+    }
+}
+
diff --git a/src/main/java/Validator.java b/src/main/java/Validator.java
@@ -0,0 +1,60 @@
+import java.util.Scanner;
+
+public class Validator {
+
+    public static int getPeopleCount() {
+        Scanner scanner = new Scanner(System.in).useDelimiter("\n");
+        int count;
+        while (true) {
+            if (scanner.hasNextInt() && (count = scanner.nextInt()) > 0) {
+                return count;
+            } else {
+                createErrorMessage();
+                scanner.nextLine();
+            }
+        }
+    }
+
+    public static String getFoodName() {
+        Scanner scanner = new Scanner(System.in).useDelimiter("\n");
+        String text;
+        while (true) {
+            if (isFoodNameValid(text = scanner.nextLine())) {
+                return text;
+            } else {
+                createErrorMessage();
+            }
+        }
+    }
+
+    public static double getFoodPrice() {
+        Scanner scanner = new Scanner(System.in).useDelimiter("\n");
+
+        double price;
+        while (true) {
+            if (scanner.hasNextDouble() && checkNonNegative(price = scanner.nextDouble())) {
+                return price;
+            } else {
+                createErrorMessage();
+                scanner.nextLine();
+            }
+        }
+    }
+
+    public static boolean checkOnExit(String exit) {
+        return exit.equalsIgnoreCase("завершить");
+    }
+
+    private static boolean checkNonNegative(double foodPrice) {
+        return foodPrice > 0;
+    }
+
+    private static boolean isFoodNameValid(String text) {
+        return !(text.trim().isEmpty());
+    }
+
+    private static void createErrorMessage() {
+        System.out.println("Некорректное значение. Пожалуйста, введите заново:");
+    }
+
+}