C# – Console Parameters test

As from my previous post on c++ console parameters, I thought that I would do one with c# (c sharp) as well, just to show the difference in the languages as well.

Compared to c++ where you cannot use the “==” (is equal to) operation because in c++ that is comparing two different memory locations and not the value within the left/right hand variables. Well in c# you can, there is a Equals method as well that you can use, but either or works fine, so in the example code below here is the main part, where I am comparing against a console parameter equalling -h (normally the help)

if (args[i].Equals("-h")) Console.WriteLine("-h option selected(equals)");
if (args[i]=="-h") Console.WriteLine("-h option selected (==)");

both of them are fine to use as you can see from the output at the bottom of the post, both will print out that “-h option selected”, best to use the Equals though.

Here is the full source code

using System;
 
namespace consoletest
{
	class MainClass
	{
		public static void Main (string[] args)
		{
			for (int i = 0; i < args.Length; i++)
			{
				Console.WriteLine("args " + i + " : " + args[i]);								
				if (args[i].Equals("-h")) Console.WriteLine("-h option selected(equals)");
				if (args[i]=="-h") Console.WriteLine("-h option selected (==)");
			}
		}
	}
}

and here is the output using mono as the .Net runtime environment, as you can see both -h has been outputed

mono consoletest.exe -h here
args 0 : -h
-h option selected(equals)
-h option selected (==)
args 1 : here

Leave a Reply

Your email address will not be published.