Yandex-Practicum · kamberbattch · Oct 12, 2022 · Oct 12, 2022 · Oct 13, 2022
diff --git a/.idea/.gitignore b/.idea/.gitignore
diff --git a/.idea/codeStyles/Project.xml b/.idea/codeStyles/Project.xml
diff --git a/.idea/codeStyles/codeStyleConfig.xml b/.idea/codeStyles/codeStyleConfig.xml
diff --git a/.idea/compiler.xml b/.idea/compiler.xml
diff --git a/.idea/git_toolbox_prj.xml b/.idea/git_toolbox_prj.xml
diff --git a/.idea/gradle.xml b/.idea/gradle.xml
diff --git a/.idea/misc.xml b/.idea/misc.xml
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
diff --git a/src/main/java/Main.java b/src/main/java/Main.java
@@ -1,8 +1,83 @@
-public class Main {
+import java.util.Scanner;
 
+public class Main {
+    private static final Scanner scan = new Scanner(System.in);
     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");
+        Calculator.inputPersons();
+        Calculator.addProducts();
+        Calculator.payPeople();
+    }
+
+    public static class Calculator {
+        static double totalPrice = 0;
+        static String names = "";
+        static int persons = 0;
+
+        public static void inputPersons() {
+            while (true) {
+                System.out.println("How many persons?");
+                if (scan.hasNextInt()) {
+                    persons = scan.nextInt();
+                    if (persons <= 1) {
+                        System.out.println("Amount of persons must be integer > 1. Try again.");
+                        continue;
+                    }
+                    break;
+                } else {
+                    System.out.println("Amount of persons must be integer > 1. Try again.");
+                    scan.nextLine();
+                    continue;
+                }
+            }
+        }
+
+        public static void addProducts() {
+            while (true) {
+                System.out.println("Product name: ");
+                String name = scan.next() + scan.nextLine();
+                System.out.println("Price: ");
+                if (scan.hasNextDouble()) {
+                    double price = scan.nextDouble();
+                    if (price < 0) {
+                        System.out.println("Price must be positive double! Try again");
+                        continue;
+                    }
+                    totalPrice += price;
+                    names += name + "\n";
+                } else {
+                    System.out.println("Price must be positive double! Try again");
+                    scan.nextLine();
+                    continue;
+                }
+                System.out.println("Product " + name + " successfully added! Enough? (yes - any symbol/no - n): ");
+                String answer = scan.next();
+                if (answer.equalsIgnoreCase("n")) {
+                    continue;
+                } else {break;}
+            }
+        }
+
+        public static void payPeople() {
+            int ruble = (int) Math.floor(totalPrice);
+            int payPeople = (int) Math.floor(totalPrice/persons);
+            System.out.println("Вы заказали следующие продукты:\n" + names + "на сумму: " + totalPrice + " " + Calculator.payPeoples(ruble));
+            System.out.println("Каждый из " + persons + " человек заплатит по " + String.format("%.2f", totalPrice/persons) + " " + Calculator.payPeoples(payPeople));
+        }
+
+        static String payPeoples(int ruble) {
+            if (ruble % 100 / 10 == 1) {
+                return "рублей";
+            } else {
+                switch (ruble % 10) {
+                    case 1 :
+                        return "рубль";
+                    case 2:
+                    case 3:
+                    case 4:
+                        return "рубля";
+                    default: return "рублей";
+                }
+            }
+        }
     }
-}
+}