tLen-tLen · tLen-tLen · Aug 20, 2023 · Aug 20, 2023 · Charmandik · Aug 21, 2023
diff --git a/src/main/java/Calculator.java b/src/main/java/Calculator.java
@@ -0,0 +1,34 @@
+import java.util.ArrayList;
+
+public class Calculator {
+    private ArrayList<Product> products;
+
+    public Calculator() {
+        this.products = new ArrayList<>();
+    }
+
+    public void addProduct(Product product) {
+        this.products.add(product);
+    }
+
+    public void showProducts() {
+        System.out.println("Добавленные товары:");
+        for (int i = 0; i < this.products.size(); i++) {
+            Product product = this.products.get(i);
+            System.out.println(product.getName() + " - " + product.getPrice());
+        }
+    }
+
+    public void showScore(int countPersons) {
+        double sum = 0;
+        for (int i = 0; i < this.products.size(); i++) {
+            sum += this.products.get(i).getPrice();
+        }
+
+        RusCurrencyHelper helper = new RusCurrencyHelper();
+
+        System.out.println("\n Общая сумма: " + String.format("%.2f", sum) + helper.getCurrencyString(sum));
+        double sumForOne = sum / countPersons;
+        System.out.println("\n С человека: " + String.format("%.2f", sumForOne) + helper.getCurrencyString(sumForOne));
+    }
+}
diff --git a/src/main/java/Main.java b/src/main/java/Main.java
@@ -1,6 +1,75 @@
-
+import java.util.Scanner;
 public class Main {
     public static void main(String[] args) {
-        System.out.println("Hello world!");
+
+        int countPersons = getCountPersons();
+        Calculator calculator = getCalculatorWithProducts();
+        calculator.showProducts();
+        calculator.showScore(countPersons);
+    }
+
+    private static int getCountPersons() {
+        int countPersons = 0;
+
+        do {
+            System.out.println("На скольких человек нужно разделить счет?");
+
+            try {
+                Scanner scanner = new Scanner(System.in);
+                countPersons = scanner.nextInt();
+                if (countPersons <= 1) {
+                    System.out.println("Количество человек должно быть больше одного");
+                }
+            } catch (Exception e) {
+                System.out.println("Некорректное количество человек");
+            }
+        } while(countPersons <= 1);
+
+        return countPersons;
+    }
+
+    private static Calculator getCalculatorWithProducts() {
+        Calculator calculator = new Calculator();
+
+        do {
+            String name = getProductName();
+            double price = getProductPrice();
+            calculator.addProduct(new Product(name, price));
+        } while (!isExist());
+
+        return calculator;
+    }
+
+    private static String getProductName() {
+        Scanner scanner = new Scanner(System.in);
+        System.out.println("Введите название товара");
+
+        return scanner.next();
+    }
+
+    private static double getProductPrice() {
+        double price = 0;
+        while (price <= 0) {
+            try {
+                System.out.println("Введите стоимость товара");
+                Scanner scanner = new Scanner(System.in);
+                price = scanner.nextDouble();
+                if (price <= 0) {
+                    throw new Exception();
+                }
+            } catch (Exception e) {
+                System.out.println("Некорректная стоимость товара");
+            }
+        }
+
+        return price;
+    }
+
+    private static boolean isExist() {
+        Scanner scanner = new Scanner(System.in);
+        System.out.println("Для выхода введите 'завершить'. Для продолжения - введите любой символ");
+        String action = scanner.next();
+
+        return action.equalsIgnoreCase("завершить");
     }
 }
diff --git a/src/main/java/Product.java b/src/main/java/Product.java
@@ -0,0 +1,17 @@
+public class Product {
+    private final String name;
+    private final double price;
+
+    public Product(String name, double price) {
+        this.name = name;
+        this.price = price;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public double getPrice() {
+        return price;
+    }
+}
diff --git a/src/main/java/RusCurrencyHelper.java b/src/main/java/RusCurrencyHelper.java
@@ -0,0 +1,13 @@
+public class RusCurrencyHelper {
+    public String getCurrencyString(double count) {
+        int rubles =((int)count) % 10;
+
+        String result = switch (rubles) {
+            case 1 -> "рубль";
+            case 2, 3, 4 -> "рубля";
+            default -> "рублей";
+        };
+
+        return " " + result;
+    }
+}