public abstract class Fahrzeug
{
    private double position;
    private double speed;
    private int wheels;
    
    public void bewege( double time){
        this.position += speed*time/60;
        if (this instanceof Krankenwagen) {
            System.out.println("TA-TÜ-TA-TAAAAAAA");
        }
    }
    
    public void setSpeed(double s) {
        speed = s;
        if (this. speed > this.getMaxSpeed()) this.speed = this.getMaxSpeed(); 
    }
    
    public abstract double getMaxSpeed();
    
    public int getWheelCount(){
        return this.wheels;
    }
    
    public Fahrzeug(int w){
        this.position = 0;
        this.speed = 0;
        this.wheels = w;
    }
    
    public String toString(){
        return " fährt aktuell " + this.speed + "km/h und hat schon eine Strecke von " + this.position + " zurückgelegt";
        
    }
}