C# Fundamentals

Understanding Core C# Concepts

Welcome to the C# Fundamentals section of the MSDN Community. Here, you'll find a comprehensive overview of the essential building blocks that make C# a powerful and versatile programming language. Whether you're new to C# or looking to solidify your understanding, this resource is designed to guide you through the key concepts.

Key Topics Covered:

• Variables and Data Types: Learn about primitive data types like int, double, bool, and reference types such as string and classes. Understand how to declare and initialize variables.
• Operators: Explore arithmetic, relational, logical, and assignment operators. Discover how they are used to manipulate data and control program flow.
• Control Flow Statements: Master conditional statements like if, else if, else, and switch statements. Learn about looping constructs such as for, while, and do-while loops.
• Methods (Functions): Understand how to define and call methods, pass arguments, and return values. Learn about method overloading and scope.
• Arrays: Discover how to work with one-dimensional and multi-dimensional arrays to store collections of data.
• Classes and Objects: Dive into the world of Object-Oriented Programming (OOP) in C#. Learn about defining classes, creating objects, and understanding concepts like encapsulation, inheritance, and polymorphism.
• Basic Input/Output: Learn how to interact with the user using Console.WriteLine() and Console.ReadLine().

Example: A Simple C# Program

Here's a basic "Hello, World!" example to illustrate variable declaration and output:

using System;

public class HelloWorld
{
    public static void Main(string[] args)
    {
        // Declare a string variable
        string message = "Hello, C# World!";

        // Print the message to the console
        Console.WriteLine(message);

        // Declare an integer variable and perform a simple calculation
        int a = 10;
        int b = 20;
        int sum = a + b;
        Console.WriteLine($"The sum of {a} and {b} is: {sum}");
    }
}