How to pass command line parameters in the main method of C#?

Main() method is the entry point-

static void Main(string[] args)

The parameter array args is used to set parameters-

string[] args)

If you add two parameters , it will set the following -

var args = new string[] {"arg1","arg2”}

Here is the demo code-

Example

using System;

namespace Demo {
   class HelloWorld {

      // args for command line
      static void Main(string[] args) {
         Console.WriteLine("Welcome here!");
         Console.ReadKey();
      }
   }
}

Compiling a C# program using the command line instead of the Visual Studio IDE-

• Open a text editor and add the above code.

• Save the file as helloworld.cs

• Open the command prompt tool and go to the directory where the file is saved.

• Enter csc helloworld.cs and press Enter to compile your code.

• If there are no error codes in your code, the command prompt will take you to the next line and generate the helloworld.exe executable file.

• Type helloworld to execute your program.

• You can see the output Hello World printed on the screen.

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