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Проектная работа 1 #1

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e73bec4
Проектная работа 1
tasha-a Apr 23, 2023
e7d30c6
Проектная работа 1
tasha-a Apr 26, 2023
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101 changes: 101 additions & 0 deletions src/main/java/Calculator.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,101 @@
import java.text.DecimalFormat;
import java.util.Scanner;

public class Calculator {
public static void calculator(int numberPeople) {

String finish = "Завершить";
double sum = 00.00;
StringBuilder list = new StringBuilder();
String endingRub = "";
String endingSum = "";

DecimalFormat decimalFormat = new DecimalFormat("#.##");

while (true) {

System.out.println("Введите название товара или слово 'Завершить', чтобы получить результат");
Scanner scanner = new Scanner(System.in);
String nameGoods = scanner.nextLine();

if (nameGoods.equalsIgnoreCase(finish)) {
break;
}

System.out.println("Введите стоимость в формате 00,00");

if (scanner.hasNextDouble()) {

double price = scanner.nextDouble();

if (price > 0) {
sum = sum + price;
endingRub = ending(price);
decimalFormat.format(price);

list.append(" \n" + nameGoods + " – " + price + " рубл" + endingRub);

} else {
System.out.println("Ошибка! Неверный формат цены. Попробуйте ввести данные о товаре снова");
}
} else {
System.out.println("Ошибка! Неверный формат цены. Попробуйте ввести данные о товаре снова");
}
}

endingSum = ending(sum / numberPeople);
System.out.println(list + "\n" + "С каждого: " + decimalFormat.format(sum / numberPeople) + " рубл" + endingSum);
}

public static String ending(double price) {

String endingOne = "ь";
String endingTwo = "я";
String endingThree = "ей";
String ending;

int priceInt = (int) price;

if (price > 10) {
price %= 100;

if (price == 11 || price == 12 || price == 13 || price == 14) {
ending = endingThree;

} else {
priceInt %= 10;

switch (priceInt) {
case 1:
ending = endingOne;
break;
case 2:
case 3:
case 4:
ending = endingTwo;
break;
default:
ending = endingThree;
break;
}
}
} else {
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@SeveNChaK SeveNChaK Apr 27, 2023

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⏫ тут код по сути дублируется, поэтому можно не делать if, а просто вынести и оставить только код, который в первой ветке

price %= 100;

            if (price == 11 || price == 12 || price == 13 || price == 14) {
                ending = endingThree;

            } else {
                priceInt %= 10;

                switch (priceInt) {
                    case 1:
                        ending = endingOne;
                        break;
                    case 2:
                    case 3:
                    case 4:
                        ending = endingTwo;
                        break;
                    default:
                        ending = endingThree;
                        break;
                }
            }

Этого должно хватить

priceInt %= 10;

switch (priceInt) {
case 1:
ending = endingOne;
break;
case 2:
case 3:
case 4:
ending = endingTwo;
break;
default:
ending = endingThree;
break;
}
}
return ending;
}
}
28 changes: 26 additions & 2 deletions src/main/java/Main.java
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Original file line number Diff line number Diff line change
@@ -1,6 +1,30 @@
import java.util.Scanner;
import java.text.DecimalFormat;

public class Main {
public static void main(String[] args) {
System.out.println("Hello world!");

while (true) {

Scanner scanner = new Scanner(System.in);
System.out.println("На сколько человек делим счет?");

if (scanner.hasNextInt()) {
int numberPeople = scanner.nextInt();

if (numberPeople > 1) {
Calculator.calculator(numberPeople);
break;
} else {
System.out.println("Некорректное число. Попробуйте ввести количество людей снова");
}
} else {
System.out.println("Некорректное число. Попробуйте ввести количество людей снова");
}
}
}
}
}