import java.util.Arrays;
import java.util.List;

class Info {
	private Double distanceKm;
	private Double fuel;
	
	public Info(Double distanceKm, Double fuel) {
		this.distanceKm = distanceKm;
		this.fuel = fuel;
	}

	public double getDistanceKm() {
		return distanceKm;
	}

	public double getFuel() {
		return fuel;
	}
	
}

public class Main {

	public static void main(String []args) {
		
		List<Info> valuesFromECU = Arrays.asList(
				new Info[]{
					new Info(10.0, 1.0),
					new Info(10.5, 1.0),
					new Info(11.2, 1.0),
					new Info(15.0, 1.5),
					new Info(20.0, null),
					new Info(21.0, 2.1),
					
				});

		for (Info info : valuesFromECU) {
		    double consumption =info.getDistanceKm()/info.getFuel();
		    System.out.println("Your car has a fuel consumption of " + consumption + " kilometers per litre");	    
		}	
		
	}
		
}