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Проектная работа №1 #1

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e1f6893
Remove classes
Jul 27, 2022
c521234
Change project name
Jul 27, 2022
f11eb6e
first project
Z1maBlue Oct 18, 2022
44b205e
fixes
Z1maBlue Oct 23, 2022
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1 change: 1 addition & 0 deletions .gitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -13,3 +13,4 @@
.externalNativeBuild
.cxx
local.properties
.idea/
2 changes: 1 addition & 1 deletion settings.gradle
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Original file line number Diff line number Diff line change
Expand Up @@ -12,4 +12,4 @@ dependencyResolutionManagement {
mavenCentral()
}
}
rootProject.name = "BillCalculator"
rootProject.name = "Java-Module-Project"
91 changes: 91 additions & 0 deletions src/main/java/App.java
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@@ -0,0 +1,91 @@
import java.util.Scanner;
import java.lang.Math;
public class App {
Scanner sc = new Scanner(System.in);
Calculator calculator = new Calculator();

@faritowich faritowich Oct 20, 2022

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Так как калькулятор один на всю программу, можно сделать его, его методы и поля static,чтобы не нужно было создавать его экземпляр. Тогда можно будет просто вызывать методы напрямую: Calculator:.getSum()


public void run() {
int peopleCount = getPeopleCount();
readItems();
double sum = calculator.getSum();
String info = calculator.getItemsAsStr();
System.out.println(info);
double avg = sum / peopleCount;
double roundedValue = Math.floor(avg);
String template;
if (roundedValue % 100 > 9 && roundedValue % 100 < 21){
template = "%.2f рублей";
}
else if (roundedValue % 10 == 1) {
template = "%.2f рубль";
}
else if ( roundedValue % 10 > 1 && roundedValue % 10 < 5 ) {
template = "%.2f рубля";
}
else {
template = "%.2f рублей";
}

@faritowich faritowich Oct 20, 2022

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Для множественных вариантов лучше использовать конструкцию switch

System.out.println(String.format(template, avg));


}
private int getPeopleCount(){
while(true){
try {
System.out.println("Укажите колличество человек");
String myString = sc.next();
int peopleCount = Integer.parseInt(myString);
if (peopleCount <= 1) {
System.out.println("Колличество человек должно быть больше 1");
continue;
}
else {
return peopleCount;
}
} catch (NumberFormatException e) {
System.out.println("Неревный ввод");

}

}
}
private void readItems(){
while (true) {
System.out.println("Введите название продукта");
String title = sc.next();
while (true) {
try {
System.out.println("Введите цену продукта");
String myString1 = sc.next();
double price = Double.parseDouble(myString1);
if (price > 0) {
Item item = new Item(title, price);
calculator.addItem(item);
System.out.println("Товар успешно добавлен");
System.out.println("Если это все продукты, то введите 'exit', иначе введите любой символ");
String finish = sc.next();
if (finish.equalsIgnoreCase("exit")) {
break;
} else {
continue;
}
} else {
System.out.println("Неревный ввод");
continue;
}
} catch (NumberFormatException e) {
System.out.println("Неревный ввод");

}


}
break;



}
}


}
38 changes: 19 additions & 19 deletions src/main/java/Calculator.java
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@@ -1,22 +1,22 @@
class Calculator {

int friendsCount;

String cart = "Добавленные товары:";
double totalPrice = 0;

Calculator(int friendsCount) {
this.friendsCount = friendsCount;
import java.util.ArrayList;
public class Calculator{
ArrayList<Item> items = new ArrayList<Item>();
public double getSum(){
double sum = 0;
for (Item item: items){
sum += item.price;
}
return sum;
}

void addItem(Item item) {
totalPrice += item.price;
cart = cart + "\n" + item.name;

System.out.println(item.name + " в корзине");
public void addItem(Item item){
items.add(item);
}

double divideSum() {
return totalPrice / friendsCount;
public String getItemsAsStr(){
String info = "Добавленные товары: \n";
for (Item item: items){
info += item.toString() + "\n";
}
return info;
}
}

}
17 changes: 0 additions & 17 deletions src/main/java/Formatter.java
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This file was deleted.

16 changes: 9 additions & 7 deletions src/main/java/Item.java
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Original file line number Diff line number Diff line change
@@ -1,10 +1,12 @@
class Item {

String name;
public class Item {
String title;
double price;

Item(String name, double price) {
this.name = name;
this.price = price;
Item(String Title, double Price) {
title = Title;
price = Price;
}
public String toString(){
String priceAsStr = Double.toString(price);
return title + " " + priceAsStr;
}
}
47 changes: 3 additions & 44 deletions src/main/java/Main.java
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Original file line number Diff line number Diff line change
@@ -1,49 +1,8 @@
import java.util.Scanner;

public class Main {

public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);

int friendCount;
while (true) {
System.out.println("На сколько человек необходимо разделить счет?");
friendCount = scanner.nextInt();

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.");
}
}

Calculator calculator = new Calculator(friendCount);

while (true) {
System.out.println("Введите название товара");
String name = scanner.next();

System.out.println("Введите стоимость товара в формате: 'рубли.копейки' [10.45, 11.40]");
double price = scanner.nextDouble();

calculator.addItem(new Item(name, price));

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();

if (answer.equalsIgnoreCase("Завершить")) {
break;
}
}

double result = calculator.divideSum();
Formatter formatter = new Formatter();

System.out.println(calculator.cart);
System.out.println("Каждому человеку к оплате: " + formatter.roundResult(result) + " " + formatter.formatValue(result));
App app = new App();
app.run();
}
}