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Проектная работа №1 #82

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3 changes: 3 additions & 0 deletions .idea/.gitignore
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6 changes: 6 additions & 0 deletions .idea/compiler.xml
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18 changes: 18 additions & 0 deletions .idea/gradle.xml
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10 changes: 10 additions & 0 deletions .idea/misc.xml
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6 changes: 6 additions & 0 deletions .idea/vcs.xml
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45 changes: 45 additions & 0 deletions src/main/java/Calculator.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,45 @@

import java.util.Scanner;

public class Calculator {

String receipt = "";
double summa = 0;

public void addGood(String title, double price) {
Good tovar = new Good(title, price);

receipt = receipt.concat("\n").concat(tovar.title);
summa = summa + tovar.amount;
}

public String getReceipt() {
return receipt;
}

public double getSumma() {
return summa;
}

public String getRubleAddition(int num)
{
int preLastDigit = num % 100 / 10;
if (preLastDigit == 1)
{
return "рублей";
}

switch (num % 10)
{
case 1:
return "рубль";
case 2:
case 3:
case 4:
return "рубля";
default:
return "рублей";
}
}

}
12 changes: 12 additions & 0 deletions src/main/java/Good.java
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public class Good {

// поля
String title;
double amount;

Good (String name, double price) {
title = name;
amount = price;
}

}
77 changes: 74 additions & 3 deletions src/main/java/Main.java
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Original file line number Diff line number Diff line change
@@ -1,8 +1,79 @@

import java.util.Scanner;

public 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");

Scanner scanner = new Scanner(System.in);
// шаг 1: запрашиваем количество участников
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@MagicUnderHood MagicUnderHood Oct 24, 2022

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Каждый шаг можно выделить в отдельную функцию, так код можно будет переиспользовать

int numberOfFriends;

while (true) {
System.out.println("На сколько человек вы хотели бы разделить счет?");
// проверяем наличие целого числа в вводе
if (!scanner.hasNextInt()) { // если нет целое число, то просим ввести еще раз
System.out.println("Введите целое число: пожалуйста.");
scanner.next();
continue;
}
else {
numberOfFriends = scanner.nextInt();
}

// проверяем количество человек
if (numberOfFriends > 1) {
break;
} else {
System.out.println("Вас слишком мало, чтобы делить счет :)");
}

}

// шаг 2. добавление товаров и подсчет товаров
Calculator calculator = new Calculator();
while (true) {
System.out.println("Введите название товара");
scanner.nextLine();
String name = scanner.nextLine();

System.out.println("Введите цену");
double price;

// проверяем, что цена введена корректно
if (!scanner.hasNextDouble()) {
System.out.println("Ошибка в цене товара. Попробуйте снова.");
continue;
}
else {
price = scanner.nextDouble();
}

if (price > 0) {
calculator.addGood(name, price); // добавляем товар
System.out.println("Товар успешно добавлен. Если хотите завершить ввод, напишите - завершить.");
String exit = scanner.next();
if (exit.equalsIgnoreCase("завершить")) {
break;
}
} else {
System.out.println("Вы ввели отрицательную цену. Попробуйте еще раз ввести товар.");
}
}

// шаг 3. вывод результата
System.out.println("Добавленные товары:");
System.out.println(calculator.getReceipt());
System.out.println("Сумма к оплате: " + String.format("%.2f",calculator.getSumma()));

// определяем окончание слова рубль
double finalAmount = calculator.getSumma() / numberOfFriends;
String formattedDouble = String.format("%.2f", finalAmount);
String rubles = calculator.getRubleAddition((int) Math.floor(finalAmount));

System.out.println("Каждый должен заплатить = " + formattedDouble + " " + rubles);

}
}