//DesignClass DesignObject = new DesignClass();
        public void StackMenu()
        {
            int UserChoice;

            do
            {
                Console.Clear();
                Console.WriteLine("Stack Menu");
                Console.WriteLine("1-PUSH");
                Console.WriteLine("2-POP");
                Console.WriteLine("3-Display Elements of Stack");
                Console.WriteLine("4-Sort Elements in Stack");
                Console.WriteLine("5-Print Stack Top Value");
                Console.WriteLine("6-Go Back To Main Menu");
                Console.WriteLine("Enter Your Choice");
                UserChoice = int.Parse(Console.ReadLine());

                switch (UserChoice)
                {
                case 1:
                    Console.WriteLine("Enter Element to be Inserted");
                    int AddValue = int.Parse(Console.ReadLine());
                    StackObject.AddingValues(AddValue);
                    Console.WriteLine("Value Added in Stack");
                    //Console.ReadLine();
                    break;

                case 2:
                    int ValueRemoved = StackObject.RemovingValues();
                    Console.WriteLine("Value Removed is " + ValueRemoved);
                    break;

                case 3:
                    StackObject.DisplayingValues();
                    Console.ReadLine();
                    //Console.Clear();
                    break;

                case 4:
                    Console.WriteLine("Stack Before Sorting");
                    StackObject.DisplayingValues();
                    StackObject.SortingValues();
                    Console.WriteLine("Stack After Sorting");
                    StackObject.DisplayingValues();
                    break;

                case 5:
                    Console.WriteLine("Top Value=" + StackObject.GettingTopValue());
                    //Console.ReadLine();
                    //Console.Clear();
                    break;

                case 6:
                    Console.WriteLine("Exiting Stack Menu");
                    //Console.ReadLine();
                    Console.Clear();
                    return;

                default:
                    Console.WriteLine("Invalid Input. Please Try Again");
                    Console.ReadLine();
                    Console.Clear();
                    break;
                }
            } while (UserChoice != 6);
        }