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18 changes: 18 additions & 0 deletions src/main/java/Car.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,18 @@

public class Car {
private final String name;
private final int speed;

public Car(String name, int speed) {
this.name = name;
this.speed = speed;
}

public String getName() {
return name;
}

public int getSpeed() {
return speed;
}
}
67 changes: 65 additions & 2 deletions src/main/java/Main.java
Original file line number Diff line number Diff line change
@@ -1,6 +1,69 @@
import java.util.Scanner;

public class Main {

private static final int CARS_COUNT = 3;
private static final int MIN_SPEED = 1;
private static final int MAX_SPEED = 250;

public static void main(String[] args) {
System.out.println("Hello world!");
Scanner scanner = new Scanner(System.in);
Race race = new Race();

for (int i = 1; i <= CARS_COUNT; i++) {
String name = readCarName(scanner, i);
int speed = readCarSpeed(scanner, i);

Car car = new Car(name, speed);
race.consider(car);
}

System.out.println("Самая быстрая машина: " + race.getLeaderName());
scanner.close();
}

private static String readCarName(Scanner scanner, int carNumber) {
while (true) {
System.out.println("Введите название машины №" + carNumber + ":");
String name = scanner.nextLine().trim();

if (name.isEmpty()) {
System.out.println("Ошибка: название не может быть пустым. Повторите ввод.");
continue;
}
return name;
}
}

private static int readCarSpeed(Scanner scanner, int carNumber) {
while (true) {
System.out.println("Введите скорость машины №" + carNumber + ":");
String input = scanner.nextLine().trim();

if (input.isEmpty()) {
System.out.println("Ошибка: скорость не может быть пустой. Повторите ввод.");
continue;
}

if (input.contains(".") || input.contains(",")) {
System.out.println("Ошибка: скорость должна быть целым числом. Повторите ввод.");
continue;
}

int speed;
try {
speed = Integer.parseInt(input);
} catch (NumberFormatException e) {
System.out.println("Ошибка: введите целое число. Повторите ввод.");
continue;
}

if (speed < MIN_SPEED || speed > MAX_SPEED) {
System.out.println("Неправильная скорость (допустимо " + MIN_SPEED + "–" + MAX_SPEED + ").");
continue;
}

return speed;
}
}
}
}
17 changes: 17 additions & 0 deletions src/main/java/Race.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,17 @@

public class Race {
private String leaderName = "";
private int leaderDistance = 0;

public void consider(Car car) {
int distance = 24 * car.getSpeed();
if (distance > leaderDistance) {
leaderDistance = distance;
leaderName = car.getName();
}
}

public String getLeaderName() {
return leaderName;
}
}