class Schiff:CustomStringConvertible{
    
    private var name:String=""
    private var laenge:Double=0.0
    
    required init(name:String, laenge:Double){
        self.name=name
        self.laenge=laenge
    }
    init(name:String){
        self.name=name
        self.laenge=100
    }
    
    // toString
    var description :String {
        return "Schiff: \(name)  \(laenge)"
    }
    
    // Computed Properties
    var Name:String {
        get { return name }
        set { name=newValue }
    }
    var Laenge:Double {
        get { return laenge }
        set { laenge=newValue }
    }
    
    func drucken() {
        print(description)
    }
}


var schiff:Schiff = Schiff(name:"Titanic",laenge:223.4)


print(schiff)
schiff.name="Paula 1"   // eine Datei !

print(schiff)

schiff.Name = "CPU2"
print(schiff)
schiff.drucken()


var schiff2:Schiff = Schiff(name:"Titanic2")
print(schiff2)


class Dampfer:Schiff{
    
    private var anzPassagiere:Int32=0
    
    init(name:String, laenge:Double, anzPassagiere:Int32){
        self.anzPassagiere=anzPassagiere
        //super.init(name:name,laenge:laenge)
        super.init(name:name)
    }

    required init(name: String, laenge: Double) {
        fatalError("init(name:laenge:) has not been implemented")
    }
    
    // toString
    override var description :String {
        return  super.description +  "Dampfer: \(anzPassagiere)"
    }
    
    // Computed Properties
    var AnzPassagiere:Int32 {
        get { return anzPassagiere }
        set { anzPassagiere=newValue }
    }
    
    
    override func drucken() {
        print(description)
    }
   
}

var dampfer1:Dampfer = Dampfer(name:"Sea World", laenge:1234, anzPassagiere:5467)
print(dampfer1)
dampfer1.drucken()