C# - C Sharp

Syntax Overview

1int x = 10;

1returnType MethodName(parameters) { }

1class ClassName { }

1// Single line or /* Multi-line */

Code Examples and Tutorials

Learning C# programming requires hands-on practice with real code examples. Below, you'll find comprehensive code samples that demonstrate fundamental concepts, common programming patterns, and practical implementations. Each example is carefully explained to help you understand not just what the code does, but why it's written that way and how you can adapt it for your own projects.

1using System;
2
3class Program {
4    static void Main() {
5        Console.WriteLine("Hello, World!");
6    }
7}

1int age = 25;
2double price = 19.99;
3string name = "John";
4bool isActive = true;
5char grade = 'A';

1public int Add(int a, int b) {
2    return a + b;
3}
4
5static void Main() {
6    Program p = new Program();
7    int result = p.Add(5, 3);
8    Console.WriteLine($"Sum: {result}");
9}

1public class Person {
2    public string Name { get; set; }
3    public int Age { get; set; }
4    
5    public void Display() {
6        Console.WriteLine($"{Name} is {Age} years old");
7    }
8}
9
10class Program {
11    static void Main() {
12        Person person = new Person {
13            Name = "John",
14            Age = 25
15        };
16        person.Display();
17    }
18}

1// For loop
2for (int i = 0; i < 10; i++) {
3    Console.WriteLine(i);
4}
5
6// Foreach loop
7int[] numbers = {1, 2, 3, 4, 5};
8foreach (int num in numbers) {
9    Console.WriteLine(num);
10}

1int age = 18;
2
3if (age >= 18) {
4    Console.WriteLine("Adult");
5} else {
6    Console.WriteLine("Minor");
7}

Essential C# Commands and Features

Understanding the essential commands and functions in C# is crucial for effective programming. This section provides detailed explanations of the most important commands, functions, and language features you'll use regularly when developing applications with C#. Each command is explained with its purpose, syntax, and practical usage examples to help you master the language quickly.

1Console.WriteLine("Hello");

1string input = Console.ReadLine();

1public class MyClass { }

1using System;

1var name = "John";

1async Task<int> GetData() { await ... }

Learning C# Programming

Common Use Cases

C# is widely used across various industries and application domains. Understanding where and how C# is typically used helps you make informed decisions about when to choose this language for your projects. Below are the most common use cases where C# excels, along with examples of real-world applications built with this powerful programming language.

Best Practices and Coding Standards

Following best practices is essential for writing professional, maintainable C# code. These guidelines have been developed by the programming community over years of experience and help ensure your code is readable, efficient, and follows industry standards. Adopting these practices early in your C# learning journey will make you a better developer and help you write code that others can easily understand and maintain.