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Race.java
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74 lines (67 loc) · 2.87 KB
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import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;
public class Race {
ArrayList<Car> carArrayList = new ArrayList<>();
ArrayList<String> leadersArrayList = new ArrayList<>();
int numberOfLeaders = 0;
static int maxSpeed = 250, numberOfCars = 3;
static String speedErrorMessage = "Введена некорректная скорость. Введите целое число от 0 до "+ maxSpeed +".";
void addCars() {
Scanner scanner = new Scanner(System.in);
for (int i = 1; i <= numberOfCars; i++) {
System.out.println("Введите название машины №" + i + ":");
String carName = scanner.next();
while (true) {
int carSpeed;
System.out.println("Введите скорость машины в км/ч №" + i + ":");
scanner.nextLine();
if (scanner.hasNextInt()) {
carSpeed = scanner.nextInt();
if (carSpeed < 0 || carSpeed > maxSpeed) {
System.out.println(speedErrorMessage);
} else {
carArrayList.add(new Car(carName, carSpeed));
break;
}
} else {
System.out.println(speedErrorMessage);
}
}
}
}
void calculateRaceLeader(ArrayList<Car> carsArrayList) {
Car raceLeader = new Car("leaderName", -1);
int topDistance = raceLeader.distance;
for (Car currentCar : carsArrayList) {
if (currentCar.distance >= raceLeader.distance) {
raceLeader = currentCar;
topDistance = currentCar.distance;
}
}
for (Car currentCar : carsArrayList) {
if (currentCar.distance == topDistance) {
leadersArrayList.add(currentCar.name);
}
}
}
String convertLeadersArrayToString(ArrayList<String> carsArrayList) {
String[] leadersArray = new String[carsArrayList.size()];
String leadersString;
for (String currentLeadersCar : carsArrayList) {
leadersArray[numberOfLeaders] = currentLeadersCar;
numberOfLeaders++;
}
leadersString = Arrays.toString(leadersArray);
return leadersString.substring(1, leadersString.length() - 1); //избавляемся от квадратных скобок в начале и в конце строки
}
void printLeaders() {
String fastestCar;
fastestCar = convertLeadersArrayToString(leadersArrayList);
if (numberOfLeaders > 1) {
System.out.println("Самые быстрые машины: " + fastestCar);
} else {
System.out.println("Самая быстрая машина: " + fastestCar);
}
}
}