Creating and Reading Text File

using System;
using System.IO;
namespace ConsoleApp1
{

    internal class Program
    {
        static void Main(string[] args)
        {
            string writeText = "Learning C#";
            //writing on file
            File.WriteAllText("filename.txt",writeText);

            //path of file
            //root_project_location vary where you save the project folder

            string path = @"[ROOT_PROJECT_LOCALION]\bin\Debug\filename.txt";
            string readText = File.ReadAllText(path);
            Console.WriteLine(readText);
            Console.ReadKey();

        }

    }

}