CHASH Tutorial

Structure of a C# Program

A basic C# program follows a specific structure that organizes your code clearly and logically. Let’s break down the key components:

1. Namespace Declaration
   Defines the scope that contains a set of related classes. It helps avoid name conflicts.
2. Class Declaration
   The blueprint of the program containing methods and data. Every C# program must have at least one class.
3. Main Method
   The entry point of the program where execution starts. It must be declared as static void Main(string[] args).
4. Statements
   Instructions inside the Main method that the program executes, such as printing text or calculations.

Example of a Simple C# Program

using System;

namespace HelloWorldApp
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello, World!");
        }
    }
}
  

Explanation:
- using System; imports the System namespace which contains fundamental classes like Console.
- namespace HelloWorldApp groups our program.
- class Program defines the class.
- Main method is where the program starts.
- Console.WriteLine("Hello, World!"); prints text to the screen.