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102 changes: 89 additions & 13 deletions
src/main/java/Calculator.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,22 +1,98 @@ | ||
| class Calculator { | ||
| import java.util.Scanner; | ||
|
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| int friendsCount; | ||
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| String cart = "Добавленные товары:"; | ||
| double totalPrice = 0; | ||
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| Calculator(int friendsCount) { | ||
| this.friendsCount = friendsCount; | ||
| public class Calculator { | ||
| // Метод добавления количества персон | ||
| public int addPerson(){ | ||
| int person = -1; | ||
| Scanner input = new Scanner(System.in); | ||
| while (person <= 0) { | ||
| System.out.println("Введите количество персон"); | ||
| if (input.hasNextInt()) { | ||
| person = input.nextInt(); | ||
| if (person <= 0) { | ||
| System.out.println("Вы ввели не верное количесво персон"); | ||
| } | ||
| } else { | ||
| System.out.println("Вы ввели ошибочное значение"); | ||
| input.next(); // Сдвиг сканера, иначе бесконечный цикл | ||
| } | ||
| } | ||
| return person; | ||
| } | ||
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| void addItem(Item item) { | ||
| totalPrice += item.price; | ||
| cart = cart + "\n" + item.name; | ||
| private Product addProduct(){ | ||
| String name = null; | ||
| double cost = -1; | ||
| Product product; | ||
| Scanner input = new Scanner(System.in); | ||
| System.out.println("Введите название продукта"); | ||
| // В название принимается любое значение | ||
| if(input.hasNext()) { | ||
| name = input.next(); | ||
| } | ||
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| System.out.println(item.name + " в корзине"); | ||
| System.out.println("Введите стоимость продукта в формате \"рубли,копейки [10,45]\""); | ||
| while (cost <= 0) { | ||
| if (input.hasNextDouble()) { | ||
| cost = input.nextDouble(); | ||
| } | ||
| else { | ||
| System.out.println("Вы ввели не корректную стоимость"); | ||
| input.next(); // Сдвиг | ||
| } | ||
| } | ||
| System.out.println("Вы добавили товар: \"" + name + "\" стоимостью: " + cost); | ||
| product = new Product(name,cost); | ||
| return product; | ||
| } | ||
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| double divideSum() { | ||
| return totalPrice / friendsCount; | ||
| //Получить список всех продуктов и финальную стоимость | ||
| public double summProducts() | ||
| { | ||
| String productsAllPerson = ""; | ||
| double costAllPerson = 0; | ||
| Scanner input = new Scanner(System.in); | ||
| String answer; | ||
| Product product; | ||
| String strDialog; | ||
| while(true) { | ||
| System.out.println("Хотите ли Вы добавить новый продукт? (Да/Нет/Завершить)"); | ||
| if (input.hasNext()) { | ||
| answer = input.next(); | ||
| if (answer.equalsIgnoreCase("да")) { | ||
| product = addProduct(); | ||
| productsAllPerson = productsAllPerson + product.productName + "\n"; | ||
| costAllPerson = costAllPerson + product.cost; | ||
| } | ||
| if (answer.equalsIgnoreCase("нет") || answer.equalsIgnoreCase("завершить")) { | ||
| break; | ||
| } | ||
| } | ||
| } | ||
| strDialog = "Добавленные товары:\n%s\nОбщей стоимостью: %.2f %s"; | ||
| strDialog = String.format(strDialog, productsAllPerson, costAllPerson, getEnding(costAllPerson)); | ||
| System.out.println(strDialog); | ||
| return costAllPerson; | ||
| } | ||
|
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| // Склонение рубля | ||
| public String getEnding(double cost){ | ||
| int preLast = (int)Math.floor(cost) % 100 / 10; | ||
| if (preLast == 1){ | ||
| return "рублей"; | ||
| } | ||
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| switch ((int)Math.floor(cost) % 10){ | ||
| case 1: | ||
| return "рубль"; | ||
| case 2: | ||
| case 3: | ||
| case 4: | ||
| return "рубля"; | ||
| default: | ||
| return "рублей"; | ||
| } | ||
| } | ||
| } | ||
|
|
17 changes: 0 additions & 17 deletions
src/main/java/Formatter.java
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10 changes: 0 additions & 10 deletions
src/main/java/Item.java
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56 changes: 16 additions & 40 deletions
src/main/java/Main.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,49 +1,25 @@ | ||
| import java.util.Scanner; | ||
| //import java.util.Scanner; | ||
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| public class Main { | ||
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| public static void main(String[] args) { | ||
| Scanner scanner = new Scanner(System.in); | ||
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| int friendCount; | ||
| while (true) { | ||
| System.out.println("На сколько человек необходимо разделить счет?"); | ||
| friendCount = scanner.nextInt(); | ||
|
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| if (friendCount > 1) { | ||
| break; | ||
| } else if (friendCount == 1) { | ||
| System.out.println( | ||
| "Нет смысла делить сумму на одного человека. Давайте попробуем ввести другое значение, которое будет больше единицы."); | ||
| } else { | ||
| System.out.println("Неверное количество друзей. Значение должно быть болье единицы, давайте попробуем еще раз."); | ||
| } | ||
| } | ||
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| Calculator calculator = new Calculator(friendCount); | ||
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| while (true) { | ||
| System.out.println("Введите название товара"); | ||
| String name = scanner.next(); | ||
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| System.out.println("Введите стоимость товара в формате: 'рубли.копейки' [10.45, 11.40]"); | ||
| double price = scanner.nextDouble(); | ||
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| calculator.addItem(new Item(name, price)); | ||
| // ваш код начнется здесь | ||
| // вы не должны ограничиваться только классом Main и можете создавать свои классы по необходимости | ||
| System.out.println("Привет!"); | ||
| Calculator calc = new Calculator(); | ||
| // Запрашиваем количество персон у пользователя | ||
| int person = calc.addPerson(); | ||
| // Запрашиваем список продуктов со стоимостью | ||
| double costAll = calc.summProducts(); | ||
| double cost = costAll / person; | ||
| String dialog = "Каждый из друзей должен заплатить: %.2f %s"; | ||
| dialog = String.format(dialog, cost, calc.getEnding(cost)); | ||
| System.out.println(dialog); | ||
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| System.out.println("Завершено!"); | ||
| } | ||
|
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| System.out.println( | ||
| "Хотите добавить еще один товар? Введите любой символ для продолжения, либо 'Завершить' если больше нет товаров для добавления"); | ||
| String answer = scanner.next(); | ||
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| if (answer.equalsIgnoreCase("Завершить")) { | ||
| break; | ||
| } | ||
| } | ||
|
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| double result = calculator.divideSum(); | ||
| Formatter formatter = new Formatter(); | ||
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| System.out.println(calculator.cart); | ||
| System.out.println("Каждому человеку к оплате: " + formatter.roundResult(result) + " " + formatter.formatValue(result)); | ||
| } | ||
| } |
8 changes: 8 additions & 0 deletions
src/main/java/Product.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| public class Product { | ||
| String productName; | ||
| double cost; | ||
| Product(String productName, double cost){ | ||
| this.productName = productName; | ||
| this.cost = cost; | ||
| } | ||
| } |
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