diff --git a/src/main/java/InvoiceCalculator.java b/src/main/java/InvoiceCalculator.java
new file mode 100644
index 0000000..ed4fcc9
--- /dev/null
+++ b/src/main/java/InvoiceCalculator.java
@@ -0,0 +1,140 @@
+import java.util.ArrayList;
+import java.util.Scanner;
+
+public class InvoiceCalculator {
+ protected ArrayList<product> products = new ArrayList<strong>();
+ protected int countUsers;
+
+ public void start() {
+ this.requestCountUsers();
+ this.addProducts();
+ this.printProducts();
+ this.printResults();
+ }
+
+ public void requestCountUsers() {
+ Scanner scanner = new Scanner(System.in);
+ System.out.println("На скольких человек необходимо разделить счёт?");
+
+ String input;
+ while (true) {
+ input = scanner.nextLine();
+ if (isInt(input) && Integer.parseInt(input)> 1) {
+ break;
+ } else {
+ System.out.println("Кол-во должно быть больше 1");
+ System.out.println("Повторите ввод:");
+ }
+ }
+
+ this.countUsers = Integer.parseInt(input);
+ }
+
+ public void addProducts() {
+ Scanner scanner = new Scanner(System.in);
+ while (true) {
+ System.out.println("Добавьте новый товар или введите \"Завершить\"");
+ String productTitle;
+ double productPrice;
+ String input;
+
+ System.out.println("Введите название товара:");
+ input = scanner.nextLine();
+ if (checkEnd(input)) {
+ break;
+ }
+ productTitle = input;
+
+ while (true) {
+ System.out.println("Введите цену товара:");
+ input = scanner.nextLine();
+ if (isDouble(input)) {
+ productPrice = Double.parseDouble(input);
+ break;
+ }
+ System.out.println("Некорректное значение");
+ }
+
+ Product product = new Product(productTitle, productPrice);
+ this.products.add(product);
+ }
+ }
+
+ public void printProducts() {
+ System.out.printf("%n -=-=-=-=-=-=-=- %n");
+
+ if (this.products.size() == 0) {
+ System.out.println("Список товаров пуст...");
+ } else {
+ double sum = 0;
+ System.out.println("Добавленные товары:");
+ for (int i = 0; i < this.products.size(); i++) {
+ Product product = this.products.get(i);
+ System.out.printf("%d) %s%n", i + 1, product);
+ sum += product.price;
+ }
+ System.out.printf("Всего товаров: %s шт. на сумму %.2f%n", this.products.size(), sum);
+ }
+ }
+
+ public double getAvgSum() {
+ double sum = 0;
+ if (this.products.size() == 0) {
+ return 0;
+ } else {
+ for (int i = 0; i < this.products.size(); i++) {
+ sum += this.products.get(i).price;
+ }
+ return sum / this.countUsers;
+ }
+ }
+
+ public String getRubAddition(double sum) {
+ String rubAddition = "рублей";
+ int sumInt = (int) sum;
+ int preLastDigit = sumInt % 100 / 10;
+ if (preLastDigit == 1) {
+ return rubAddition;
+ }
+
+ switch (sumInt % 10) {
+ case 1:
+ return "рубль";
+ case 2:
+ case 3:
+ case 4:
+ return "рубля";
+ default:
+ return rubAddition;
+ }
+ }
+
+ public void printResults() {
+ double avgSum = this.getAvgSum();
+ String getRubAddition = this.getRubAddition(avgSum);
+ System.out.printf("Итого: %.2f %s на человека%n", avgSum, getRubAddition);
+ }
+
+ public static boolean isInt(String input) throws NumberFormatException {
+ try {
+ Integer.parseInt(input);
+ return true;
+ } catch (NumberFormatException e) {
+ return false;
+ }
+ }
+
+ public static boolean isDouble(String input) throws NumberFormatException {
+ try {
+ Double.parseDouble(input);
+ return true;
+ } catch (NumberFormatException e) {
+ return false;
+ }
+ }
+
+ public static boolean checkEnd(String input) {
+ return "завершить".equals(input.trim().toLowerCase());
+ }
+
+}
diff --git a/src/main/java/Main.java b/src/main/java/Main.java
index a9198c4..bc9ac88 100644
--- a/src/main/java/Main.java
+++ b/src/main/java/Main.java
@@ -1,8 +1,6 @@
-public class Main {
-
+class Main {
 public static void main(String[] args) {
- // ваш код начнется здесь
- // вы не должны ограничиваться только классом Main и можете создавать свои классы по необходимости
- System.out.println("Привет Мир");
+ InvoiceCalculator invoiceCalculator = new InvoiceCalculator();
+ invoiceCalculator.start();
 }
 }
diff --git a/src/main/java/Product.java b/src/main/java/Product.java
new file mode 100644
index 0000000..5caa2b9
--- /dev/null
+++ b/src/main/java/Product.java
@@ -0,0 +1,13 @@
+public class Product {
+ String title;
+ double price;
+
+ public Product(String title, double price) {
+ this.title = title;
+ this.price = price;
+ }
+
+ public String toString() {
+ return String.format("%s: %.2f", title, price);
+ }
+}
\ No newline at end of file
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