import java.util.Comparator;
import java.util.List;
public class Race {
private static final int RACE_DURATION = 24;
private String leaderOfRace;
public String saveFastestCarName(List carList) {
return carList.stream()
.max(Comparator.comparing((v1) -> v1.getSpeed() * RACE_DURATION))
.map(car -> this.leaderOfRace = car.getName()).orElse(null);
}
public String getLeaderOfRace() {
return this.leaderOfRace;
}
}