Running tasks asynchronously

First, we will write a simple console application that needs to execute three methods, and execute them synchronously (one after the other).

Running multiple actions synchronously

In Visual Studio 2017, press Ctrl + Shift + N or go to File | New | Project....

In the New Project dialog, in the Installed | Templates list, expand Visual C#, and select .NET Core. In the center list, select Console App (.NET Core), type the name as Ch12_Tasks, change the location to C:\Code, type the solution name as Chapter12, and then click on OK.

In Visual Studio Code, create a directory named Chapter12 with a subfolder named Ch12_Tasks, and open the Ch12_Tasks folder. In the Integrated Terminal, execute the command: dotnet new console.

In both Visual Studio 2017 and Visual Studio Code, ensure that the following namespaces have been imported:

    using System; 
    using System.Threading; 
    using System.Threading.Tasks; 
    using System.Diagnostics; 
    using static System...