thoughts ... parsing the command line. about advancedconsoleapptemplate HOT 2 OPEN

using Microsoft.Extensions.DependencyInjection;
using System;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    public static class Startup
    {
        public static async Task Main(string[] args)
        {
            var program = BuildProgram(args);
            await program.Run();
            Console.ReadLine();
        }

        private static void ConfigureServices(IServiceCollection services)
        {
            services.AddSingleton<ProgramA>();
            services.AddSingleton<ProgramB>();
        }

        private static IProgram BuildProgram(string[] args)
        {
            var serviceCollection = new ServiceCollection();
            ConfigureServices(serviceCollection);

            var serviceProvider = serviceCollection.BuildServiceProvider(true);
            var type = Type.GetType(args[0], true, true);
            return serviceProvider.GetRequiredService(type) as IProgram;
        }
    }

    public interface IProgram
    {
        Task Run();
    }

    public class ProgramA : IProgram
    {
        public async Task Run()
        {
            Console.WriteLine("Hello From Program A");
        }
    }

    public class ProgramB : IProgram
    {
        public async Task Run()
        {
            Console.WriteLine("Hello From Program B");
        }
    }
}