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| public static void main(String[] args) { | ||
| System.out.println("Hello world!"); | ||
| Scanner scanner = new Scanner(System.in); | ||
| Car[] cars = new Car[3]; |
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От хранения массива машин и лишнего цикла при определении победителя можно избавиться, если при вводе данных сразу вычислять победителя и хранить его в отдельной переменной, тогда программа будет требовать меньше памяти и работать быстрее
| speed = Integer.parseInt(input); | ||
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| // Проверяем диапазон | ||
| if (speed <= 0 || speed > 250) { |
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Минимальную и максимальную скорости лучше вынести в константы для повышения читабельности кода
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| try { | ||
| // Проверяем на дробное число | ||
| if (input.contains(".") || input.contains(",")) { |
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Уже есть обработка NumberFormatException , поэтому от этой проверки можно отказаться
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