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| do | ||
| { | ||
| System.out.println("На какое количество человек разделить счёт?"); | ||
| countPeople = scanner.nextInt(); |
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Пользователь может ввести на вопрос про количество человек вместо целого числа строку, и приложение упадет. Для стоимости товаров ты обрабатываешь такую ситуацию через hasNextDouble, стоит добавить обработку и для количества людей, чтобы приложение не падало.
| int intTotalAmount = (int) totalAmount; | ||
| String stringTotalAmount = String.valueOf(intTotalAmount); | ||
| int length = stringTotalAmount.length(); | ||
| char lastDigit = stringTotalAmount.charAt(length-1); |
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Можно использовать деление по модулю - %10 для определения последней цифры
| case 4: | ||
| return "рубля"; | ||
| default: | ||
| return "рублей"; |
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Единственное, не учтена ситуация для чисел 11-19, окончание должно быть "рублей", а сейчас дает рубля для 12-14. Для этого стоит проверять, что округленное totalAmount % 100 между 11 и 19 включительно находится
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