using System;

public class Program

{

    public static void Main()

    {

        //Fabrica Abstracta #1

        AbstractFactory factory1 = new ConcreteFactory();

        Client client1 = new Client(factory1);

        client1.Run();

        //Fabrica Abstracta #2

        AbstractFactory factory2 = new ConcreteFactory();

        Client client2 = new Client(factory2);

        client2.Run();

    }

    abstract class AbstractFactory{

        public abstract AbstractProductA CreateProductA();

        public abstract AbstractProductB CreateProductB();  

    }

​

​

    class ConcreteFactory : AbstractFactory {

        public override AbstractProductA CreateProductA(){

            return new ProductA1();

        }

        public override AbstractProductB CreateProductB(){

            return new ProductB1();

        }   

    }

​

    class ConcreteFactory2 : AbstractFactory {

        public override AbstractProductA CreateProductA(){

            return new ProductA1();

        }

        public override AbstractProductB CreateProductB(){

            return new ProductB1();

        }

    }

​

​

    abstract class AbstractProductA {

    }

​

​

    abstract class AbstractProductB {

        public abstract void Interact(AbstractProductA a);

    }

​

​

    class ProductA1 : AbstractProductA {

    }

​

​

    class ProductA2 : AbstractProductA {

    }

    class ProductB1 : AbstractProductB {

        public override void Interact(AbstractProductA a) {

            Console.WriteLine(this.GetType().Name + " interacts with " + a.GetType().Name); 

        }

    }

    class ProductB2 : AbstractProductB {

        public override void Interact(AbstractProductA a) {

            Console.WriteLine(this.GetType().Name + " interacts with " + a.GetType().Name); 

        }

    }

    class Client {

        private AbstractProductA _abstractProductA;

        private AbstractProductB _abstractProductB;

        public Client(AbstractFactory factory) {

            _abstractProductA = factory.CreateProductA();

            _abstractProductB = factory.CreateProductB();

        }

        public void Run() {

            _abstractProductB.Interact(_abstractProductA);

        }

    }

​

}

​

​

​