Assignment 3 (OCP and SRP)

OCP/IDevice.cs

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+namespace ElectronicDevices
+{
+    public interface IDevice
+    {
+        void DisplayDetails();
+    }
+}

OCP/IDeviceFactory.cs

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+namespace ElectronicDevices
+{
+    public interface IDeviceFactory
+    {
+        IDevice CreateDevice();
+    }
+}

OCP/Laptop.cs

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+namespace ElectronicDevices
+{
+    public class Laptop : IDevice
+    {
+        public void DisplayDetails()
+        {
+            Console.WriteLine("Laptop: Model Y, RAM: 16GB, Storage: 512GB");
+        }
+    }
+}

OCP/LaptopFactory.cs

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+namespace ElectronicDevices
+{
+    public class LaptopFactory : IDeviceFactory
+    {
+        public IDevice CreateDevice()
+        {
+            return new Laptop();
+        }
+    }
+}

OCP/Program.cs

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+namespace ElectronicDevices
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            IDeviceFactory smartphoneFactory = new SmartphoneFactory();
+            IDeviceFactory laptopFactory = new LaptopFactory();
+
+            IDevice smartphone = smartphoneFactory.CreateDevice();
+            IDevice laptop = laptopFactory.CreateDevice();
+
+            smartphone.DisplayDetails();
+            laptop.DisplayDetails();
+        }
+    }
+}

OCP/Smartphone.cs

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+namespace ElectronicDevices
+{
+    public class Smartphone : IDevice
+    {
+        public void DisplayDetails()
+        {
+            Console.WriteLine("Smartphone: Model X, RAM: 8GB, Storage: 128GB");
+        }
+    }
+}

OCP/SmartphoneFactory.cs

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+namespace ElectronicDevices
+{
+    public class SmartphoneFactory : IDeviceFactory
+    {
+        public IDevice CreateDevice()
+        {
+            return new Smartphone();
+        }
+    }
+}

SRP/Example1/Printer.cs

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+namespace RectangleAreaCalculator
+{
+    public class Printer
+    {
+        public void PrintArea(double area)
+        {
+            Console.WriteLine($"Area: {area}");
+        }
+    }
+}

SRP/Example1/Program.cs

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+namespace RectangleAreaCalculator
+{
+    public class Program
+    {
+        static void Main()
+        {
+            Rectangle rectangle = new Rectangle(5.0, 3.0);
+
+            double area = rectangle.CalculateArea();
+
+            Printer printer = new Printer();
+            printer.PrintArea(area);
+        }
+    }
+}

SRP/Example1/Rectangle.cs

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+namespace RectangleAreaCalculator
+{
+    public class Rectangle
+    {
+        public double Length { get; }
+        public double Width { get; }
+
+        public Rectangle(double length, double width)
+        {
+            Length = length;
+            Width = width;
+        }
+
+        public double CalculateArea()
+        {
+            return Length * Width;
+        }
+    }
+}

SRP/Example2/FileWriter.cs

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+namespace RectangleAreaApplication
+{
+    public class FileWriter
+    {
+        public static void WriteToFile(string fileName, string content)
+        {
+            try
+            {
+                File.WriteAllText(fileName, content);
+            }
+            catch (IOException exception)
+            {
+                Console.WriteLine("Error writing to file: " + exception.Message);
+            }
+        }
+    }
+}

SRP/Example2/Program.cs

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+namespace RectangleAreaApplication
+{
+    public class Program
+    {
+        static void Main(string[] args)
+        {
+            Rectangle rectangle = new Rectangle(5.0, 3.0);
+            double area = rectangle.CalculateArea();
+
+            FileWriter.WriteToFile("area.txt", $"Area: {area}");
+
+            Console.WriteLine($"Calculated Area: {area}");
+        }
+    }
+}

SRP/Example2/Rectangle.cs

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+namespace RectangleAreaApplication
+{
+    public class Rectangle
+    {
+        private double length;
+        private double width;
+
+        public Rectangle(double length, double width)
+        {
+            this.length = length;
+            this.width = width;
+        }
+
+        public double CalculateArea()
+        {
+            return length * width;
+        }
+    }
+}