using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Parkplatz { internal class Parkboxen { private Auto? auto; public bool einparken(Auto auto) { if (this.auto == null) { this.auto = auto; return true; } else return false; } public Auto ausparken(string kennzeichen) { if (this.auto.GetKennzeichen() == kennzeichen) { Auto h = this.auto; this.auto = null; return h; } else return null; } public bool istleer() { return this.auto == null; } } }