2020-06-02 Di

06 UebgSaGenerics/GenericStack.cs

-using System;
+using Microsoft.VisualBasic;
+using System;
 using System.Collections.Generic;
 using System.Text;
 
@@ -17,7 +18,44 @@ using System.Text;
 
 namespace _06_UebgSaGenerics
 {
-    class GenericStack
+    class GenericStack <T>
     {
+        private class Element  // Element ist eine private Hilfsklasse der Klasse StringListe
+        {
+            public T obj;
+            public Element next = null;
+            public Element(T daten) { this.obj = daten; }
+            public override string ToString() => obj.ToString();
+        }
+
+        Element anf = null, ende = null;
+        int anz = 0;      // Sehr sinnvoll für Index-Ops
+                          //public StringListe() { }
+
+        public void AddFirst(T daten)
+        {
+            // 1. Leere Liste
+            // 2. Es existiert mind. ein Element
+            Element neuesElement = new Element(daten);   // Neues Element anlegen
+            anz++;
+            if (anf == null)                            // 1.Fall: Leere Liste?
+                anf = ende = neuesElement;
+            else
+            {
+                neuesElement.next = anf;                // 2. Fall
+                anf = neuesElement;
+            }
+        }
+        public T GetFirst(bool removeFromStack = true)
+        {
+            if (anf == null) throw new Exception("Stapel ist leer");
+
+            T zwischen = anf.obj;
+            if (removeFromStack == true) anf = anf.next;
+            return zwischen;
+        }
+        
+
+
     }
 }

06 UebgSaGenerics/Program.cs

 using System;
+using System.Collections.Generic;
 
 namespace _06_UebgSaGenerics
 {
@@ -7,6 +8,7 @@ namespace _06_UebgSaGenerics
         static void Main(string[] args)
         {
             Console.WriteLine("Hello World!");
+            List<int> li = new List<int>();
         }
     }
 }

07 MethodeSplitArray/07 MethodeSplitArray.csproj

+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <RootNamespace>_07_MethodeSplitArray</RootNamespace>
+  </PropertyGroup>
+
+</Project>

07 MethodeSplitArray/Program.cs

+using System;
+using System.Collections.Generic;
+
+namespace _07_MethodeSplitArray
+{
+    class Kfz : IComparable <Kfz>
+    {
+        string kennzeichen;
+        public Kfz(string kennzeichen) { this.kennzeichen = kennzeichen; }
+        public int CompareTo(Kfz other) => kennzeichen.CompareTo(other.kennzeichen);
+    }
+    class Program
+    {
+        //static int[] SplitArray(int limit, int[] f)
+        static U[] SplitArray<U>(U limit, params U[] f) 
+            where U:IComparable<U>  // ~Constraint
+            // ~Vertrag: SplitArray kann Felder von jedem Typ bearbeiten,
+            //     der eine CompareTo-Methode enthält
+        {
+            List<U> erg = new List<U>();
+            foreach (var item in f)
+            {
+                if (item.CompareTo(limit) > 0)
+                    erg.Add( item);
+            }
+            return erg.ToArray();
+        }
+        static int MyCompareTo(string s1, string s2)  // "Hallo" | "Hallo2"
+        {
+            int limit = s1.Length < s2.Length ? s1.Length : s2.Length;
+            for (int i = 0; i < limit; i++)
+            {
+                int dif = s1[i] - s2[i];
+                if (dif != 0)
+                    return dif;
+            }
+            return s1.Length - s2.Length;
+        }
+        static void Main(string[] args)
+        {
+            int[] f1 = SplitArray(3, 1, 3, 5, 7, 9, 11);
+            string[] f2 = SplitArray("Claudia", "Anton","Berta","Dieter","Emil");
+            Kfz[] f3 = SplitArray(new Kfz("N-AB 100"), 
+                new Kfz("N-XY 300"),new Kfz("AB-MN 200"), new Kfz("ER-S 500"));
+            foreach (var item in f3)
+            {
+                Console.WriteLine(item);
+            }
+
+        }
+    }
+}

07 MethodeSplitArray/bin/Debug/netcoreapp3.1/07 MethodeSplitArray.deps.json

+{
+  "runtimeTarget": {
+    "name": ".NETCoreApp,Version=v3.1",
+    "signature": ""
+  },
+  "compilationOptions": {},
+  "targets": {
+    ".NETCoreApp,Version=v3.1": {
+      "07 MethodeSplitArray/1.0.0": {
+        "runtime": {
+          "07 MethodeSplitArray.dll": {}
+        }
+      }
+    }
+  },
+  "libraries": {
+    "07 MethodeSplitArray/1.0.0": {
+      "type": "project",
+      "serviceable": false,
+      "sha512": ""
+    }
+  }
+}
\ No newline at end of file

07 MethodeSplitArray/bin/Debug/netcoreapp3.1/07 MethodeSplitArray.runtimeconfig.dev.json

+{
+  "runtimeOptions": {
+    "additionalProbingPaths": [
+      "C:\\Users\\wienkop\\.dotnet\\store\\|arch|\\|tfm|",
+      "C:\\Users\\wienkop\\.nuget\\packages"
+    ]
+  }
+}
\ No newline at end of file