PI06 i PI06-1. Docker definitions for MSSQL and Postgres. Data seeder/generator for countries and people. Entity Framework example with variants for Postgres and MSSQL

SomeOfCSharpFeatures/Delegates/MathTool.cs

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+using System;
+
+namespace Delegates;
+
+public class MathTool
+{
+  public static int Sum(int x, int y)
+  {
+    return x + y;
+  }
+
+  public static int Diff(int x, int y)
+  {
+    return x - y;
+  }
+
+  public static void PrintSquare(int x)
+  {
+    Console.WriteLine("x^2 = " + x * x);
+  }
+
+  public static void PrintSquareRoot(int x)
+  {
+    Console.WriteLine("sqrt(x) = " + Math.Sqrt(x));
+  }
+}