Unterricht Tag 5

Tag 5/Unterricht/Delegate.cs

@@ -0,0 +1,31 @@
+namespace Tag_5_Unterricht;
+
+public class Delegate
+{
+
+    delegate int MathOperation(int a, int b);
+    delegate void SendEvent(string message);
+
+    public static void Main()
+    {
+        Console.WriteLine("Delegate:");
+        Func<int, int, int> add = (a,b) => a + b;
+
+        MathOperation add2 = (a, b) => a + b;
+
+        Console.WriteLine(add2(1, 4));
+
+        SendEvent sendEvent;
+        sendEvent = m => Console.WriteLine("Msg: " + m);
+        sendEvent = (m => Console.WriteLine("New Message!")) + sendEvent;
+
+        sendEvent("Hello World");
+        sendEvent("Hallo Welt");
+
+        var mOp = new MathOperation(add);
+        mOp = new MathOperation((a, b) => a * b);
+
+        Console.WriteLine(mOp(2, 5));
+    }
+
+}