Async Test

Program.cs

using System;
using System.Net.Http;
using System.Threading.Tasks;

public class Program
{
    public static void Main()
    {
        WriteLine("A: Main");
        var googleTask = CallGoogleAsync();
        WriteLine("B: Main");
        var microsoftTask = CallMicrosoftAsync();
        WriteLine("C: Main");
        googleTask.Wait();
        WriteLine("D: Main");
        microsoftTask.Wait();
        WriteLine("E: Main");
    }

    private static void WriteLine(string text) {
        Console.WriteLine(text);
    }

    private static async Task CallGoogleAsync()
    {
        WriteLine("F: CallGoogleAsync");
        HttpClient client = new HttpClient();
        var stringTask = client.GetStringAsync("https://www.google.com");
        WriteLine("G: CallGoogleAsync");
        var content = await stringTask;
        WriteLine("H: CallGoogleAsync");
    }

    private static async Task CallMicrosoftAsync()
    {
        WriteLine("I: CallMicrosoftAsync");
        HttpClient client = new HttpClient();
        var stringTask = client.GetStringAsync("https://docs.microsoft.com/en-us/");
        WriteLine("J: CallMicrosoftAsync");
        var content = await stringTask;
        WriteLine("K: CallMicrosoftAsync");
    }
}