How to Create folder Directory in C#

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.IO;



namespace ConsoleApplication25

{

    class Program

    {

        static void Main(string[] args)

        {



            l1:

            Console.WriteLine("Enter the folder name :");

            string n = Console.ReadLine();

            DirectoryInfo DIR = new DirectoryInfo(@"C:\Users\salman\Desktop\FILE\"+n);





            try

            {



                if (DIR.Exists)

                {

                    Console.WriteLine("THIS FOLDER ALREADY EXIST......\nPress any key to go back");

                    Console.ReadLine();

                    Console.Clear();

                    goto l1;

                }

                else

                {

                    DIR.Create();

                    Console.Write("fOLDER CREATED.....");

                }





            }

            catch (Exception E)

            {

                Console.ForegroundColor = System.ConsoleColor.Red;

                Console.WriteLine("Folder couldnot be created due to " + E);

            }



            Console.WriteLine("Enter the folder that u want to delete.......");

            n = Console.ReadLine();

            new DirectoryInfo(@"C:\Users\salman\Desktop\FILE\" + n);

            DIR.Delete();

            Console.WriteLine("Folder deleted.....");

            Console.ReadLine();



        }

    }

}

Text Reader and Text Writer in C# File Read Write Operation

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Text WRITER IN C#

-------------------------------------------------------------------------------------------------------------

         

 using (TextWriter wr=File.CreateText(@"C:\Users\salman\Desktop\FILE\textwriter.txt"))

            {



                for (int i = 0; i < 100; i++)

                {

                    wr.WriteLine((i+1)+"SALMAN MASOOD THE CONCEPT ACADEMY.....");

                }







            }

            Console.WriteLine("FILE CREATED SUCCESSFULLY....");

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Text READER IN C#

-------------------------------------------------------------------------------------------------------------

  using (TextReader tr = File.OpenText(@"C:\Users\salman\Desktop\FILE\textwriter.txt"))

            {

                Console.WriteLine(tr.ReadToEnd());



            }

            Console.ReadLine();

Stream Writer and Stream Reader in C# File READ WIRTE OPERATIONS

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FileStream Writer : Code

------------------------------------------------------------------------------------------------------------

 FileStream f = new FileStream(@"C:\Users\salman\Desktop\FILE\streamwriter.txt", FileMode.Open);

            StreamReader r = new StreamReader(f);

            string msg = r.ReadLine();

            Console.ForegroundColor = System.ConsoleColor.Red;



            Console.WriteLine("-------------------------------------------");

         

            Console.ForegroundColor = System.ConsoleColor.Green;





            Console.WriteLine(msg);



            Console.ForegroundColor = System.ConsoleColor.Red;



            Console.WriteLine("-------------------------------------------");

            f.Close();

         

            Console.ReadLine();

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FileStream Reader : Code

------------------------------------------------------------------------------------------------------------

FileStream f = new FileStream(@"C:\Users\salman\Desktop\FILE\streamwriter.txt", FileMode.Create);

            StreamWriter s = new StreamWriter(f);

            Console.WriteLine("Enter your text: ");

            string msg = Console.ReadLine();

            s.Write(msg);

            s.Close();

            f.Close();

            Console.WriteLine("File created successfully.............");

            Console.ReadLine();