C#

C#

• C# is a general-purpose, multi-paradigm programming language encompassing strong typing, lexically scoped, imperative, declarative, functional, generic, object-oriented, and component-oriented programming disciplines.
• Family :C
• Designed & Developer by Microsoft
• First appeared 2000
• Website : https://docs.microsoft.com/en-us/dotnet/csharp/index

Advantage of C#

• Object- Oriented Language. C# is pure object-oriented language, this allows you to create modular maintainable applications and reusable codes. ...
• Automatic Garbage Collection. ...
• No Problem if Memory Leak. ...
• Easy-to-Development. ...
• Cross Platform. ...
• Better Integration. ...
• More Legible Coding. ...
• Scarcity of Choice.

Disadvantage of C#

• It has no security.
• Complex in a very large high-level program.
• Used for platform specific application commonly.
• For a particular operating system or platform, the library set has usually chosen that locks.
• When C++ used for web applications complex and difficult to debug.
• C++ can't support garbage collection.

Features of C#

• Simplicity. All the Syntax of java is like C++. ...
• Consistent Behavior. C# introduced a unified type system which eliminates the problem of varying ranges of integer types. ...
• Modern Programming Language. ...
• Pure Object-Oriented Programming Language. ...
• Type Safety. ...
• Feature of Versioning. ...
• Compatible with other Language. ...
• Inter-operability.

Structure of C#

using System;

namespace YourNamespace

{

    class YourClass

    {

    }

    struct YourStruct

    {

    }

    interface IYourInterface 

    {

    }

    delegate int YourDelegate();

    enum YourEnum 

    {

    }

    namespace YourNestedNamespace

    {

        struct YourStruct 

        {

        }

    }

    class YourMainClass

    {

        static void Main(string[] args) 

        {

            //Your program starts here...

        }

    }

}

Example of C#

using System;

class HelloWorld {

static void Main() {

//print text without inserting new line after the message

Console.Write("Hello World,");

Console.Write("How are you?");

//print new line

Console.WriteLine();

//print text with new line after the message

Console.WriteLine("Hello World");

Console.WriteLine("How are you?");

//print new line using escape sequence just like C language

Console.WriteLine("Hello World\nHow are you?");

}

}

O/P : 

                     Hello World,

                     How are you?

                     Hello World

                     How are you?

                     Hello World

                   How are you?

Keywords of C#

• abstract
• as
• base
• bool
• break
• byte
• case
• catch
• char
• checked
• class
• const
• continue
• decimal
• default
• delegate
• do
• double
• else
• enum
• event
• explicit
• extern
• false
• finally
• fixed
• float
• for
• foreach
• goto
• if
• implicit
• in
• int
• interface
• internal
• is
• lock
• long
• namespace
• new
• null
• object
• operator
• out
• override
• params
• private
• protected
• public
• readonly
• ref
• return
• sbyte
• sealed
• short
• sizeof
• stackalloc
• static
• string
• struct
• switch
• this
• throw
• true
• try
• typeof
• unit
• ulong
• unchecked
• unsafe
• ushort
• using
• using static
• virtual
• void
• volatile
• while