using System;

using System.Diagnostics;

using System.Threading.Tasks;

public class Program

{

    public static async Task Main()

    {

        var sw = Stopwatch.StartNew();

        Console.WriteLine("Hello World!");

        //Method1Async();

        //Method2();

        sw.Stop();

​

        Console.WriteLine($"Done - {sw.ElapsedMilliseconds} ms");

    }

    public static async Task<int> Method1Async()

    {

        int milliSecondDelay = 1000;

        Console.WriteLine("Entering Method 1");

        // This represents a long-ish async Http call

        await Task.Delay(milliSecondDelay);

        Console.WriteLine(" Done awaiting inside Method 1");

        return milliSecondDelay;

    }

​

    public static void Method2()

    {

        Console.WriteLine("Entering Method 2");

        Task.Delay(500).Wait();

        Console.WriteLine($" Done awaiting inside Method 2");

    }

​

    public static void Method3(int intParam)

    {

        Console.WriteLine($"Method 3 was passed {intParam}");

    }

}