how to create an interface

You can't really build a "Hospital Management System" or any system with just an interface. You should start and learn from the basics first. Learn OOP and what technology stack you are going to use. You would also need to know about data types, variables, flow control, syntax, basic data base interaction and how to write methods and classes. From there, you can muddle through and learn what you need to learn as you go.

 

Don't know where to begin? Check this post as your guide: https://www.c-sharpcorner.com/UploadFile/8c19e8/learning-Asp-Net-where-to-begin/ 

public class IAddService

{

   int Add(int a, int b); 

} 

Implement interface method in the class.

public class AddService : IAddService

{

   public int Add(int a, int b)

   {

      var result = a + b;
      return result; 

   } 

} 

let me know if you have needed any other help from myside.

Thanks

Hi,

 

Let's create an interface class. The class will be called

 

"GuruInterface." Our main class will then extend the defined interface. All the code needs to be written in the Program.cs file.