Skip to main content
Engineering LibreTexts

1.12: C# Examples

  • Page ID
    10591
  • \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\)

    464px-C_Sharp_wordmark.svg_.pngOverview

    C# is a general-purpose, object-oriented programming language encompassing strong typing, imperative, declarative, functional, generic, object-oriented (class-based), and component-oriented programming disciplines. It was developed around 2000 by Microsoft within its .NET initiative and later approved as a standard by Ecma (ECMA-334) and ISO (ISO/IEC 23270:2006). C# is one of the programming languages designed for the Common Language Infrastructure.

    C# is one of the most popular current programming languages[1], is the primary language for Windows application development and is often used in computer science and gaming courses.

    Example

    Hello World

    // This program displays "Hello world!"
    //
    // References:
    // https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/inside-a-program/hello-world-your-first-program
    
    public class Hello
    {
        public static void Main()
        {
            System.Console.WriteLine("Hello world!");
        }
    }
    

    Output

    Hello world!
    

    Discussion

    Each code element represents:[2]

    • // begins a comment
    • public class Hello begins the Hello World program
    • { begins a block of code
    • public static void Main() begins the main function
    • System.Console.WriteLine() calls the standard output write line function
    • "Hello world!" is the literal string to be displayed
    • ; ends each line of C# code
    • } ends a block of code

    C# IDEs

    There are many free cloud-based and local IDEs available to begin coding in C#. Check with your instructor or do your own research for recommendations.

    Local IDEs

    • Microsoft Visual Studio
    • Visual Studio Code

    References

    • Wikiversity: Computer Programming

    1. TIOBE: Index
    2. Wikibooks: Programming Fundamentals/Hello World

    1.12: C# Examples is shared under a CC BY-SA license and was authored, remixed, and/or curated by LibreTexts.

    • Was this article helpful?