vladko-89 · vladko-89 · Dec 23, 2023 · Dec 24, 2023 · Dec 27, 2023 · Dec 28, 2023
diff --git a/src/main/java/Calculate.java b/src/main/java/Calculate.java
@@ -0,0 +1,12 @@
+public class Calculate {
+    static double totalCost;
+
+    public void sum(double item) {
+        totalCost += item;
+        System.out.println(totalCost);
+    }
+
+    public double getResult(int count) {
+        return totalCost / count;
+    }
+}
diff --git a/src/main/java/Cart.java b/src/main/java/Cart.java
@@ -0,0 +1,20 @@
+public class Cart {
+    static String purchaseList = "";
+
+    public void addPurchase(String name, double cost, String str) {
+        if (purchaseList == "") {
+            purchaseList = "Добавленные товары: \n\n" + name + ":     " + String.format("%.2f",cost) + str + "\n";
+            System.out.println("Товар " + name + " стоимостью " + String.format("%.2f",cost) + str + " успешно сохранен");
+        } else {
+            purchaseList = purchaseList + name + ":     " + String.format("%.2f",cost) +  str + "\n";
+            System.out.println("Товар " + name + " стоимостью " + String.format("%.2f",cost) + str + " успешно сохранен");
+        }
+
+
+
+    }
+
+    public void printPurchaseList() {
+        System.out.println(purchaseList);
+    }
+}
diff --git a/src/main/java/Formatter.java b/src/main/java/Formatter.java
@@ -0,0 +1,10 @@
+public class Formatter {
+
+    public String formate(int num) {
+        int res = num;
+        while (res > 20) {
+            res = res % 10;
+        }
+        return res > 1 && res < 5 ? " рубля" : res == 1 ? " рубль" : " рублей";
+    }
+}
diff --git a/src/main/java/Main.java b/src/main/java/Main.java
@@ -1,6 +1,41 @@
 
+import java.util.Scanner;
+
+
 public class Main {
+    private static final Scanner scanner = new Scanner(System.in);
     public static void main(String[] args) {
-        System.out.println("Hello world!");
+
+        Validator validator = new Validator();
+        Cart cart = new Cart();
+        Formatter formatter = new Formatter();
+        Calculate calculate = new Calculate();
+
+        System.out.println("Введите количество гостей");
+
+        int countPerson = validator.verifyInt();
+
+        String event = "";
+
+        while (!event.equalsIgnoreCase("Завершить")) {
+            System.out.println("Введите наименование товара");
+            String name = validator.verifyString();
+            System.out.println("Введите стоимость товара");
+            double cost = validator.verifyDouble();
+            String currency = formatter.formate((int) Math.floor(cost));
+
+            cart.addPurchase(name, cost, currency);
+            calculate.sum(cost);
+
+            System.out.println("Добавить новый товар? Чтобы перейти к расчету введите 'Завершить'");
+            event = scanner.next();
+
+
+        }
+        cart.printPurchaseList();
+        double partPayment = calculate.getResult(countPerson);
+        String currency = formatter.formate((int) Math.floor(partPayment));
+        System.out.println("Нужно оплатить по " + String.format("%.2f", partPayment) + currency);
     }
+
 }
diff --git a/src/main/java/Product.java b/src/main/java/Product.java
@@ -0,0 +1,12 @@
+public class Product {
+
+    String name;
+    double price;
+
+    Product(String name, double cost) {
+        this.name = name;
+        this.price = cost;
+    }
+
+
+}
diff --git a/src/main/java/Validator.java b/src/main/java/Validator.java
@@ -0,0 +1,68 @@
+import java.util.Scanner;
+
+public class Validator {
+    private static final Scanner scanner = new Scanner(System.in);
+
+    public double verifyDouble() {
+        boolean verifyDouble = false;
+        double res = 0;
+
+        while (!verifyDouble) {
+            if (scanner.hasNextDouble()) {
+                double tmp = scanner.nextDouble();
+                scanner.nextLine();
+                if (tmp > 0) {
+                    res = tmp;
+                    verifyDouble = true;
+                } else {
+                    System.out.println("Стоимость не может быть меньше 0");
+
+                }
+            } else {
+                System.out.println("Не тот формат ввода. Повторите");
+                scanner.nextLine();
+            }
+        }
+        return res;
+    }
+
+    public int verifyInt() {
+        boolean verify = false;
+        int res = 0;
+
+        while (!verify) {
+            if (!scanner.useDelimiter("\n").hasNextInt()) {
+                System.out.println("Не тот формат ввода. Введите целое число");
+                scanner.nextLine();
+            } else {
+                int tmp = scanner.useDelimiter("\n").nextInt();
+                scanner.nextLine();
+                if (tmp < 2) {
+                    System.out.println("Значение должно быть больше или равно 2");
+                } else {
+                    res = tmp;
+                    verify = true;
+                }
+            }
+        }
+        return res;
+    }
+
+    public String verifyString() {
+        boolean verify = false;
+        String res = "";
+
+        while (!verify) {
+            String tmp = scanner.nextLine().trim();
+            if (tmp.isEmpty()) {
+                System.out.println("Наименование не может быть пустым");
+
+            } else {
+                verify = true;
+                res = tmp;
+            }
+
+        }
+        return res;
+    }
+}