diff --git a/.vs/VSWorkspaceState.json b/.vs/VSWorkspaceState.json
index 6b6114114f4e89a1f2d0e911ff090e541af1260c..601733b0c07a55baf35a45e5dfdad37932eb1eb3 100644
--- a/.vs/VSWorkspaceState.json
+++ b/.vs/VSWorkspaceState.json
@@ -2,5 +2,6 @@
   "ExpandedNodes": [
     ""
   ],
+  "SelectedNode": "\\prog2-ss2022-wienkop.sln",
   "PreviewInSolutionExplorer": false
 }
\ No newline at end of file
diff --git a/.vs/prog2-ss2022-wienkop/DesignTimeBuild/.dtbcache.v2 b/.vs/prog2-ss2022-wienkop/DesignTimeBuild/.dtbcache.v2
index ecd88681bd785c531a8bc435717d6a2f897835f3..73731648e773aae0c9a3d1fd5cbd838830192d7f 100644
Binary files a/.vs/prog2-ss2022-wienkop/DesignTimeBuild/.dtbcache.v2 and b/.vs/prog2-ss2022-wienkop/DesignTimeBuild/.dtbcache.v2 differ
diff --git a/.vs/prog2-ss2022-wienkop/v16/.suo b/.vs/prog2-ss2022-wienkop/v16/.suo
index 724c8661e26ee92280b45abba6befe928c550bbf..3389ef81f6ce219877bd293b7db5a83e830b743f 100644
Binary files a/.vs/prog2-ss2022-wienkop/v16/.suo and b/.vs/prog2-ss2022-wienkop/v16/.suo differ
diff --git a/.vs/slnx.sqlite b/.vs/slnx.sqlite
index 1bab2d49409db926d6f69f6d0566e5d26f88099f..a81be662d403b68ad65a7d2970c612d43501d772 100644
Binary files a/.vs/slnx.sqlite and b/.vs/slnx.sqlite differ
diff --git a/01 IntroKlassen/Program.cs b/01 IntroKlassen/Program.cs
index e4c59fb284bf8a3858e70dc280f26d7967a66682..30827699dde34fac70b02f5ac2c37eb5e3bc8dce 100644
--- a/01 IntroKlassen/Program.cs	
+++ b/01 IntroKlassen/Program.cs	
@@ -5,7 +5,13 @@ namespace _01_IntroKlassen
     class Personalausweis
     {
         private string name;
-        public int persoId { get; private set; }
+        // public int persoId { get; private set; }
+        private int _persoId;
+        public int persoId
+        {
+            get { return _persoId; }
+            private set { _persoId = value; }
+        }
         private static int naechsteID = 1000; 
         // static: Dieses Datenfeld gibt es nur EINMAL für die Klasse
 
@@ -17,8 +23,8 @@ namespace _01_IntroKlassen
             this.persoId = naechsteID;
             naechsteID++;
         }
-        public override string ToString()
-            => $"Name: {name}, Perso-Id: {persoId}";
+        //public override string ToString()
+        //    => $"Name: {name}, Perso-Id: {persoId}";
         public string getName() { return name; }
         public int Id { get => persoId; }
         public void setNaechsteId(int wert)
@@ -30,18 +36,68 @@ namespace _01_IntroKlassen
 
         public static int NaechsteID
         {
-            get { return naechsteID; }
+            get { Console.WriteLine("get()  "); return naechsteID; }
             set
             {
+                Console.WriteLine($"set({value})  ");
                 if (value < naechsteID)
                     throw new ArgumentOutOfRangeException("Die neue ID darf nicht kleiner als die Aktuelle sein!");
                 naechsteID = value;
             }
         }
     }
+    class Buergeramt
+    {
+        private Personalausweis[] personalausweise;
+        private int anzPersos=0;
+        public Buergeramt(int anz=1000)
+        {
+            personalausweise = new Personalausweis[anz];
+        }
+        public void NeuerPersonalausweis(Personalausweis perso)
+        {
+            personalausweise[anzPersos] = perso;
+            anzPersos++;
+        }
+        public Personalausweis getPerso(int n)
+        {
+            return personalausweise[n];
+        }
+        public Personalausweis this [int n]
+        {
+            get => personalausweise[n];
+        }
+        public Personalausweis this[string name]
+        {
+            get
+            {
+                for (int i = 0; i < personalausweise.Length; i++)
+                {
+                    if (personalausweise[i].getName() == name)
+                        return personalausweise[i];
+                }
+                return null;
+
+            }
+            
+        }
+    }
+    
+    
     class Program
     {
+        int mal2(int x) => x * 2;
         static void Main(string[] args)
+        {
+            Buergeramt nuernberg = new Buergeramt(2000);
+            Buergeramt fuerth = new Buergeramt();
+            nuernberg.NeuerPersonalausweis(new Personalausweis("Anton"));
+            fuerth.NeuerPersonalausweis(new Personalausweis("Berta"));
+            Console.WriteLine(nuernberg.getPerso(0));
+            Console.WriteLine(nuernberg[0]);
+            Console.WriteLine(nuernberg["Anton"]);
+        }
+        static void Main2(string[] args)
         {
             Personalausweis.NaechsteID = 10000;
 
@@ -54,7 +110,7 @@ namespace _01_IntroKlassen
             int x = anton.Id;
             //anton.Id = 444;
 
-            Personalausweis.NaechsteID = 20000;
+            Personalausweis.NaechsteID ++;
             Personalausweis claudia = new Personalausweis("Claudia");
             Console.WriteLine(claudia);
         }
diff --git a/01 IntroKlassen/bin/Debug/netcoreapp3.1/01 IntroKlassen.dll b/01 IntroKlassen/bin/Debug/netcoreapp3.1/01 IntroKlassen.dll
index 9ab479ef25890d377d05c5890fb8de298d15bbb7..e7914d699c9fcc2fe139f45a26ac04b73b4636a4 100644
Binary files a/01 IntroKlassen/bin/Debug/netcoreapp3.1/01 IntroKlassen.dll and b/01 IntroKlassen/bin/Debug/netcoreapp3.1/01 IntroKlassen.dll differ
diff --git a/01 IntroKlassen/bin/Debug/netcoreapp3.1/01 IntroKlassen.pdb b/01 IntroKlassen/bin/Debug/netcoreapp3.1/01 IntroKlassen.pdb
index 14217a8b49084af4dbe0d7090f724fac6076aaac..12cdc8179833958f17e311f58dba97d197a4a10b 100644
Binary files a/01 IntroKlassen/bin/Debug/netcoreapp3.1/01 IntroKlassen.pdb and b/01 IntroKlassen/bin/Debug/netcoreapp3.1/01 IntroKlassen.pdb differ
diff --git a/01 IntroKlassen/obj/Debug/netcoreapp3.1/01 IntroKlassen.csproj.AssemblyReference.cache b/01 IntroKlassen/obj/Debug/netcoreapp3.1/01 IntroKlassen.csproj.AssemblyReference.cache
index f5e894aea93a73e58fa9d4feab241bc197ee1a40..3bee885b9c47984a4330cda47e969901caedc416 100644
Binary files a/01 IntroKlassen/obj/Debug/netcoreapp3.1/01 IntroKlassen.csproj.AssemblyReference.cache and b/01 IntroKlassen/obj/Debug/netcoreapp3.1/01 IntroKlassen.csproj.AssemblyReference.cache differ
diff --git a/01 IntroKlassen/obj/Debug/netcoreapp3.1/01 IntroKlassen.dll b/01 IntroKlassen/obj/Debug/netcoreapp3.1/01 IntroKlassen.dll
index 9ab479ef25890d377d05c5890fb8de298d15bbb7..e7914d699c9fcc2fe139f45a26ac04b73b4636a4 100644
Binary files a/01 IntroKlassen/obj/Debug/netcoreapp3.1/01 IntroKlassen.dll and b/01 IntroKlassen/obj/Debug/netcoreapp3.1/01 IntroKlassen.dll differ
diff --git a/01 IntroKlassen/obj/Debug/netcoreapp3.1/01 IntroKlassen.pdb b/01 IntroKlassen/obj/Debug/netcoreapp3.1/01 IntroKlassen.pdb
index 14217a8b49084af4dbe0d7090f724fac6076aaac..12cdc8179833958f17e311f58dba97d197a4a10b 100644
Binary files a/01 IntroKlassen/obj/Debug/netcoreapp3.1/01 IntroKlassen.pdb and b/01 IntroKlassen/obj/Debug/netcoreapp3.1/01 IntroKlassen.pdb differ