Projektdateien hinzufügen.

BeispielConstructur/BeispielConstructur.csproj

@@ -0,0 +1,10 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>

BeispielConstructur/Program.cs

@@ -0,0 +1,31 @@
+namespace BeispielConstructur
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            Auto a1 = new Auto("Trabant", 150);
+            Auto a2 = new Auto("Papamobil");
+            Auto a3 = new Auto(500); 
+        }
+    }
+    class Auto
+    {
+        private string marke;
+        private int ps;
+        public Auto(int ps) : this("Ferrari", ps) { }
+        public Auto(string marke) : this(marke, 50) 
+        {
+            //marke = m;
+            //ps=50;
+        }
+        public Auto(string marke, int ps) 
+        {
+            this.marke = marke; 
+            this.ps = ps;
+        }
+        public string GetMarke() { return marke; }
+        public int Getps() { return ps; }
+    
+    }
+}