using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        //creating the list

        var names = new List<string> {"safar","yatri","pavan","you"};

        //Line number 9 and 11 both are same

        List<string> names2 = new List<string> {"safar","yatri","pavan","you"};

        names.Add("you2");

        names.Add("you3");

        names.Remove("you");

        Console.WriteLine("List of names are ");

        Console.WriteLine("===================");

        //accesing the list using foreach loop

        foreach(var name in names)

        {

         // Console.WriteLine($"list is    {name}");

            Console.WriteLine(name);

        } 

        Console.WriteLine("List of names are ");

        Console.WriteLine("===================");

        //accesing the list using for looo

        for(int i=0;i<names.Count;i++)

        {

          Console.WriteLine(names[i]);

        }

        //methods found in List Collection

        var found = names.IndexOf("safar");

        //Console.WriteLine($"found  safar at {found} position "); error

        Console.WriteLine("found  safar at "+ found+" position ");

        //if we try to find the value which is not available than it returns -1

        var found2 = names.IndexOf("Bhavin");

        //so we can also put an if condtion here like if index == -1 than error massagge will be displayed

        if(found2 == -1)

        {

           Console.WriteLine("OOps looks like there is no name like :"+found2);

        }

        else

        {

            Console.WriteLine("found  name at "+ found2+" position ");

        }

        //after performing all the opration let's sort the list

        names.Sort();

        //print the list

        Console.WriteLine("After the sorting the list is");

        foreach(var name in names)

        {

            Console.WriteLine(name);

        } 

        //it will sort the list according to the natural sorting order

    }

}