public static void Unorder() { String filePath = @"C:\Users\Neelabh\Desktop\GitHub\dataStructure\DataStructures\DataStructures\TextFile1.txt"; String text = System.IO.File.ReadAllText(filePath); string [] str = text.Split(" "); MyLinkedList ll = new MyLinkedList(); for (int i = 0; i < str.Length; i++) { ll.AddLast(str[i]); } ll.Display(); Console.WriteLine("enter the string"); string s = Console.ReadLine(); bool b = ll.CheckLL(s); if (b == true) { Console.WriteLine("remove the element from the list"); ll.DeleteLL(s); } else { Console.WriteLine("Adding the element at the last of the list"); ll.AddLast(s); } ll.Display(); // to change the .txt file ll.WriteFile(); }