Add project files.

FactoryPattern/Samples/Sample2.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace FactoryPattern.Samples;
+
+public interface ISample2
+{
+    int RandomValue { get; set; }
+}
+
+public class Sample2 : ISample2
+{
+    public int RandomValue { get; set; }
+
+    public Sample2()
+    {
+        RandomValue = Random.Shared.Next(1, 101);
+    }
+}