Adding simple example of actions.

Author: Clément

source/code/projects/Actions/Actions/CallingAction.cs

@@ -0,0 +1,11 @@
+using System;
+
+public static class CallingAction
+{
+    public static void Demo(Action actionP)
+    {
+        Console.WriteLine("Now calling action: ");
+        actionP();
+        Console.WriteLine("Done calling action.");
+    }
+}

source/code/projects/Actions/Actions/ExampleActions.cs

@@ -0,0 +1,24 @@
+using System;
+
+public static class ExampleActions
+{
+    public static void Test()
+    {
+        Console.WriteLine("Test");
+    }
+    public static void Display(int i)
+    {
+        Console.WriteLine(i);
+    }
+}
+
+public static class ExampleActions<T>
+{
+    public static void DisplayArray(T[] arrayP)
+    {
+        for (int i = 0; i < arrayP.Length; i++)
+        {
+            Console.WriteLine(arrayP[i]);
+        }
+    }
+}

source/code/projects/Actions/Actions/Program.cs

@@ -0,0 +1,41 @@
+using System;
+
+class Program
+{
+    static void Main()
+    {
+        // We can call our 
+        // "Test" method directly:
+        ExampleActions.Test();
+
+        // Or we can store it
+        // in a variable and then call it.
+
+        /* An action is a 
+         * method that has no parameters and 
+         * does not return a value.
+         * https://learn.microsoft.com/en-us/dotnet/api/system.action?view=net-9.0        
+         */
+
+        Action test_variable = ExampleActions.Test;
+        test_variable();
+
+        // Similarly with arguments:
+        ExampleActions.Display(3);
+        Action<int> display_variable = ExampleActions.Display;
+        display_variable(10);
+
+        // We can even have action
+        // from class that uses generic
+        // type parameters.
+
+        int[] arrayT = { 20, 30, 40 };
+        ExampleActions<int>.DisplayArray(arrayT);
+
+        Action<int[]> display_array_variable = ExampleActions<int>.DisplayArray;
+        display_array_variable(arrayT);
+
+        // 
+        CallingAction.Demo(ExampleActions.Test);
+    }
+}