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Add dev branch #1

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e6fb7da
Add dev branch
Nov 30, 2022
815aa37
хрень какая-то
Diblans Jan 13, 2023
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50 changes: 50 additions & 0 deletions src/main/java/BillCalculator.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,50 @@
import java.util.Scanner;
public class BillCalculator {
public void startBillCalculator() {
int people = enterNumberOfPeople();
Calculator calculator = new Calculator();
calculator.enterListOfItems();
System.out.println("Добавленные товары:");
calculator.printNamesItems();
double amountPerPerson = calculator.calculate(people);
printAmountPerPerson(amountPerPerson);
}

private int enterNumberOfPeople() {
Scanner scanner = new Scanner(System.in);
while (true) {
System.out.println("Введите количество людей");
if (scanner.hasNextInt()) {
int n = scanner.nextInt();
if (n > 1) {
return n;
}
}
scanner.nextLine();
System.out.println("Вы ввели некорректное количество людей");
}
}

private void printAmountPerPerson(double amountPerPerson) {
String ruble;
int intAmountPerPerson = (int) amountPerPerson;
if (intAmountPerPerson % 100 >= 10 && intAmountPerPerson % 100 <= 20) {
ruble = "рублей";
} else {
switch (intAmountPerPerson % 10) {
case 1:
ruble = "рубль";
break;
case 2:
case 3:
case 4:
ruble = "рубля";
break;
default:
ruble = "рублей";
}
}
System.out.printf("С каждого человека %.2f %s", amountPerPerson, ruble);
}

}
64 changes: 64 additions & 0 deletions src/main/java/Calculator.java
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Original file line number Diff line number Diff line change
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import java.util.Scanner;
import java.util.ArrayList;
import java.util.List;


public class Calculator {
private final List<Item> list = new ArrayList<>();

@MagicUnderHood MagicUnderHood Jan 15, 2023

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Можно более очевидно назвать переменную, например, products

public void enterListOfItems() {
Scanner scanner = new Scanner(System.in);
while (true) {
System.out.println("Введите название товара");
String name = scanner.nextLine();
if (name.equals("")) {
System.out.println("Вы не ввели название товара, попробуйте снова");
continue;
}
System.out.println("Введите цену товара");
double cost;
if (scanner.hasNextDouble()) {
cost = scanner.nextDouble();
scanner.nextLine();
if (cost < 0) {
System.out.println("Цена не может быть отрицательной, попробуйте снова");
continue;
}
} else {
System.out.println("Вы некорректно ввели цену, попробуйте снова");
scanner.nextLine();
continue;
}
list.add(new Item(name, cost));
System.out.println("Товар добавлен");
System.out.println("Для завершения ввода товаров напишите \"Завершить\". Если хотите " +
"продолжить, нажмите Enter");
String endPhrase = scanner.nextLine();
if (endPhrase.equalsIgnoreCase("завершить")) {
break;
}
}
}

public double calculate(int people) {
if (list.isEmpty()) {
return 0;
} else {
double summa = 0;
for (Item item : list) {
summa += item.getCost();
}
return summa / people;
}
}

public void printNamesItems() {
if (list.isEmpty()) {
System.out.println("Нет товаров");
} else {
for (Item item : list) {
System.out.println(item.getName());
}
}
}
}

17 changes: 17 additions & 0 deletions src/main/java/Item.java
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public class Item {

@MagicUnderHood MagicUnderHood Jan 15, 2023

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Можно более очевидно назвать, например, Product или Good

private final String name;
private final double cost;

public Item(String name, double cost) {
this.name = name;
this.cost = cost;
}

public String getName() {
return name;
}

public double getCost() {
return cost;
}
}
10 changes: 7 additions & 3 deletions src/main/java/Main.java
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Original file line number Diff line number Diff line change
@@ -1,8 +1,12 @@
import java.util.Scanner;

@MagicUnderHood MagicUnderHood Jan 15, 2023

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Этот импорт уже неактуален, его можно удалить. Чтобы студия сама оптимизировала импорт в файле, можно нажать Ctrl+Alt+O, или в студии Code - Optimize Imports


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");

System.out.println("Алоха Гаваи");

new BillCalculator().startBillCalculator();
}
}