Programming Fundamentals/Introduction Examples CSharp

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Overview[edit]

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.[1]

C# is one of the most popular current programming languages[2], is the primary language for Windows application development and is often used in computer science and gaming courses.

Example[edit]

Input: Hello World[edit]

// 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[edit]

Hello world!

Discussion[edit]

Each code element represents:Programming Fundamentals/Hello World

  • // 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[edit]

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.

Cloud-Based IDEs[edit]

Local IDEs[edit]

References[edit]