Add project files.

FactoryPattern/Samples/Sample1.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 ISample1
+{
+    string CurrentDateTime { get; set; }
+}
+
+public class Sample1 : ISample1
+{
+    public string CurrentDateTime { get; set; } = DateTime.Now.ToString();
+}

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);
+    }
+}

FactoryPattern/Samples/UserData.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 IUserData
+{
+    string? Name { get; set; }
+}
+
+public class UserData : IUserData
+{
+    public string? Name { get; set; }
+}

FactoryPattern/Samples/Vehicles.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 IVehicle
+    {
+        string VehicleType { get; set; }
+
+        string Start();
+    }
+
+    public class Car : IVehicle
+    {
+        public string VehicleType { get; set; } = "Car";
+
+        public string Start()
+        {
+            return "The Car has been Started.";
+        }
+    }
+
+    public class Van : IVehicle
+    {
+        public string VehicleType { get; set; } = "Van";
+
+        public string Start()
+        {
+            return "The Van has been Started.";
+        }
+    }
+
+    public class Truck : IVehicle
+    {
+        public string VehicleType { get; set; } = "Truck";
+
+        public string Start()
+        {
+            return "The Truck has been Started.";
+        }
+    }
+
+}