public class Car {

private String name;

private double speed;

public Car(String name, double speed) {

this.name = name;

this.speed = speed;

if (!isCorrectSpeed()) this.speed = -1;

}

public boolean isCorrectSpeed() {

if (speed <= 0 || speed > 250) return false;

return true;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public double getSpeed() {

return speed;

}

public void setSpeed(double speed) {

this.speed = speed;

}

public double getDistance() {

return 24 * speed;

}

}