static async Task Main(string[] args)
        {
            ILaptop laptop = null;

            Console.WriteLine("1. Factory method - using interface...");
            CaseInterface.IHPLaptopFactory interfaceFactory = null;
            interfaceFactory = new CaseInterface.EnvyHPLaptopFactory();
            laptop           = interfaceFactory.CreateHPLaptop();
            Console.WriteLine(laptop.Description);

            Console.WriteLine("2. Factory method - using abstract class...");
            CaseAbstractClass.HPLaptopFactory abstractFactory = null;
            abstractFactory = new CaseAbstractClass.PavilionHPLaptopFactory();
            laptop          = abstractFactory.MakeLaptop();
            Console.WriteLine(laptop.Description);

            Console.WriteLine("3. Factory method - using private constructor...");
            var laptop2 = LaptopPrivateConstructor.NewEnvyLaptop("2GH", 1);

            Console.WriteLine("4. Factory method - using asynchronous...");
            LaptopAsynchronous laptop3 = await LaptopAsynchronous.NewEnvyLaptopAsync("2GH", 1);

            Console.WriteLine("5. Factory method - using inner class...");
            var laptop4 = LaptopInnerClass.Factory.NewEnvyLaptop("2GH", 1);
        }
Exemple #2
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        public static async Task <LaptopAsynchronous> NewEnvyLaptopAsync(string processor, int storageInTB)
        {
            var result = new LaptopAsynchronous(processor, storageInTB * 1024, HPLaptopModel.envy);

            return(await result.InitEnvyPriceAsync());
        }