Program.cs

using DesignPatterns.AdapterDesignPattern;
using DesignPatterns.CommandDesignPattern;
using DesignPatterns.CommandDesignPattern.Commands;
using DesignPatterns.CommandDesignPattern.Recievers;
using DesignPatterns.DecoratorDesignPattern;
using DesignPatterns.DecoratorDesignPattern.Decorator;
using DesignPatterns.DecoratorDesignPattern.Interfaces;
using DesignPatterns.FacadeDesignPattern;
using DesignPatterns.FacadeDesignPattern.SubSystem;
using DesignPatterns.FactoryDesignPattern;
using DesignPatterns.ObserverDesignPattern;
using DesignPatterns.ObserverDesignPattern.Observers;
using DesignPatterns.StrategyDesignPattern;
using DesignPatterns.StrategyDesignPattern.FlyBehavior;
using DesignPatterns.StrategyDesignPattern.QuackBehavior;
using DesignPatterns.TemplateMethodDesignPattern.Example1;

namespace DesignPatterns
{
    class Program
    {
        // Main method - entry point of the C# application
        static void Main(string[] args)
        {
            Console.WriteLine("Welcome to Design Patterns World!!");
            
            // 1. Strategy Design Pattern : Behavioral
            // MallardDuck mallardDuck = new MallardDuck(new FlyWithWings(), new DuckQuack());
            // mallardDuck.Display();
            // mallardDuck.PerformFly();
            // mallardDuck.PerformQuack();
            // RubberDuck rubberDuck = new RubberDuck(new FlyNoWay(), new MuteQuack());
            // rubberDuck.Display();
            // rubberDuck.PerformFly();
            // rubberDuck.PerformQuack();
            
            //2. Observer Design Pattern : Behavioral
            // WeatherData weatherData = new WeatherData();
            // CurrentConditionsDisplay display = new CurrentConditionsDisplay(weatherData);
            //StaticsDisplay display2 = new StaticsDisplay(weatherData); //not implemented
            //ForecastDisplay display3 = new ForecastDisplay(weatherData); //not implemented
            // weatherData.SetMeasurements(80, 65,30.4f);
            // weatherData.SetMeasurements(85, 70,35.4f);
            // weatherData.SetMeasurements(90, 75,40.4f);
            
            // //3. Decorator Design Pattern : Structural
            //  IBeverage espresso = new Espresso();
            //  Console.WriteLine($"Beverage: {espresso.GetDescription()} & Cost: {espresso.Cost()}");
            //  espresso= new Milk(espresso);
            //  Console.WriteLine($"Beverage: {espresso.GetDescription()} & Cost: {espresso.Cost()}");
            //  espresso= new Mocha(espresso);
            //  Console.WriteLine($"Beverage: {espresso.GetDescription()} & Cost: {espresso.Cost()}");
            
            //4. Factory Design Pattern : Creational
            // PizzaStore pizzaStore = new NyPizzaStore();
            // pizzaStore.OrderPizza("cheese");
            // pizzaStore.OrderPizza("veggie");
            // pizzaStore = new ChicagoPizzaStore();
            // pizzaStore.OrderPizza("cheese");
            // pizzaStore.OrderPizza("veggie");
            
            //5. Singleton Design Pattern : 
            
            //6. Command Design Pattern
            // //Simple Remote with one button
            // SimpleRemoteControl simpleRemote = new SimpleRemoteControl();
            // simpleRemote.SetCommand(new LightOnCommand(new Light()));
            // Console.WriteLine(simpleRemote.ToString());
            // simpleRemote.ButtonWasPressed();
            // simpleRemote.SetCommand(new LightOffCommand(new Light()));
            // Console.WriteLine(simpleRemote.ToString());
            // simpleRemote.ButtonWasPressed();
            //
            // //Remote with Multiple buttons
            // RemoteControl remoteControl = new RemoteControl();
            // //Receivers
            // Light livingRoomLight = new Light("Living Room Light");
            // Light kitchenLight = new Light("Kitchen Light");
            // CeilingFan ceilingFan = new CeilingFan("Living Room Fan");
            // GarageDoor garageDoor = new GarageDoor();
            // Stereo stereo = new Stereo("Living Room Stereo");
            // //Commands
            // LightOnCommand livingRoomLightOnCommand = new LightOnCommand(livingRoomLight);
            // LightOffCommand livingRoomLightOffCommand = new LightOffCommand(livingRoomLight);
            // LightOnCommand kitchenLightOnCommand = new LightOnCommand(kitchenLight);
            // LightOffCommand kitchenLightOffCommand = new LightOffCommand(kitchenLight);
            // CeilingFanOnCommand ceilingFanOnCommand = new CeilingFanOnCommand(ceilingFan);
            // CeilingFanOffCommand ceilingFanOffCommand = new CeilingFanOffCommand(ceilingFan);
            // StereoOnWithCDCommand stereoOnWithCdCommand = new StereoOnWithCDCommand(stereo);
            // StereoOffCommand stereoOffCommand = new StereoOffCommand(stereo);
            // ICommand[] partyOnCommands = new ICommand[]
            // {
            //     livingRoomLightOnCommand,
            //     ceilingFanOnCommand,
            //     stereoOnWithCdCommand
            // };
            // ICommand[] partyOffCommands = new ICommand[]
            // {
            //     livingRoomLightOffCommand,
            //     ceilingFanOffCommand,
            //     stereoOffCommand
            // };
            // MacroCommand partyOnCommand = new MacroCommand(partyOnCommands);
            // MacroCommand partyOffCommand = new MacroCommand(partyOffCommands);
            //
            // remoteControl.SetCommand(0,kitchenLightOnCommand, kitchenLightOffCommand);
            // remoteControl.SetCommand(1,livingRoomLightOnCommand, livingRoomLightOffCommand);
            // remoteControl.SetCommand(2,ceilingFanOnCommand, ceilingFanOffCommand);
            // remoteControl.SetCommand(3,stereoOnWithCdCommand, stereoOffCommand);
            // //Party Mode using MacroCommand
            // remoteControl.SetCommand(4, partyOnCommand, partyOffCommand);
            // Console.WriteLine(remoteControl.ToString());
            // remoteControl.OnButtonPressed(0);
            // //Undo Button
            // remoteControl.UndoButtonPressed(0);
            // remoteControl.OffButtonPressed(0);
            // remoteControl.UndoButtonPressed(0);
            // remoteControl.OnButtonPressed(1);
            // remoteControl.OffButtonPressed(1);
            // remoteControl.OnButtonPressed(2);
            // remoteControl.OffButtonPressed(2);
            // remoteControl.OnButtonPressed(3);
            // remoteControl.OffButtonPressed(3);
            // //Party mode
            // remoteControl.OnButtonPressed(4);
            // remoteControl.OffButtonPressed(4);
            // remoteControl.UndoButtonPressed(4);
            
            //7. Adapter Design Pattern
            // DuckTestDrive duckTestDrie = new DuckTestDrive();
            // duckTestDrie.DuckTest();
            
            //8. Facade Design Pattern
            // Amplifier amp = new Amplifier();
            // DVDPlayer dvd = new DVDPlayer();
            // Projector proj = new Projector();
            // Lights lights = new Lights();
            // Speakers speakers = new Speakers();
            //
            // HomeTheaterFacade homeTheater = new HomeTheaterFacade(amp, dvd, proj, lights, speakers);
            //
            // homeTheater.WatchMovie("Inception");
            // homeTheater.EndMovie();
            
            //9. Template Method Design Pattern
            // Example 1 (Payment Processor)
            // Console.WriteLine("Processing PayPal Payment:");
            // PaymentProcessor paypal = new PayPalPayment();
            // paypal.ProcessPayment(100);
            //
            // Console.WriteLine("\nProcessing Credit Card Payment:");
            // PaymentProcessor creditCard = new CreditCardPayment();
            // creditCard.ProcessPayment(250);
            
            // Wait for the user to press a key before closing the console window
            Console.WriteLine("\nPress any key to exit...");
            Console.ReadKey();
        }
    }
}