C# 7.1 and .NET Core 2.0 - Modern Cross-Platform Development - Third Edition

Enumerating arguments

To enumerate or iterate (that is, loop through) the values of those four arguments, add the following lines of highlighted code after outputting the length of the array:

WriteLine($"There are {args.Length} arguments."); 
foreach (string arg in args)
{
   WriteLine(arg); 
} 

We will now use these arguments to allow the user to pick a color for the background, foreground, width, and height of the console window.

Change the argument values to the following:

red yellow 50 10

Import the System namespace by adding the following line to the top of the code file if it is not already there:

using System; 

We need to import the System namespace so that the compiler knows about the ConsoleColor and Enum types. If you cannot see either ...