Question

as you guys can see from the code i created three classes car,new model,main . all the basic methods are in car class , i created the inherited class to try (inheritance). as you can see what i am doing is just output the wheel() method of car class with newrims() method of newmodel inherited class to make a complete sentence.need suggestion to make the code more accurate.

namespace ConsoleApplication4
{
   public class car
   {
    public static void wheel()
    {
        Console.WriteLine("The wheels are rolling");
    }
    public static void doors()
    {
        Console.WriteLine("The Doors are automatic");
    }
    public static void engine()
    {
        Console.WriteLine("The engine of car is runing");
    }
    public static void oil()
    {
        Console.WriteLine("the oil is full in tank");
    }
   }
   public class newmodel : car
   { 
    public static void newrims()
    {
        car.wheel();
        Console.WriteLine("And The new rims are rocking");
    }

  }

  class Program
  {
      static void Main()
      {
         while (true)
         {
            Console.WriteLine("Press A to Roll the Wheels baby");
            Console.WriteLine("Press B to Open/Close the Doors");
            Console.WriteLine("Press C to Start the Car Engine");
            Console.WriteLine("Press D to Check the Oil in tank");
            Console.WriteLine("Press E to Rims/wheels");
            Console.WriteLine("Press F to Exit the vehicle");
            char c = Convert.ToChar(Console.ReadLine());
            switch (c)
            {
                case 'a':
                    {
                        car.wheel();
                        break;
                    }
                case 'b':
                    {
                        car.doors();
                        break;
                    }
                case 'c':
                    {
                        car.engine();
                        break;
                    }
                case 'd':
                    {
                        car.oil();
                        break;
                    }
                case 'e':
                    {
                        newmodel.newrims();
                        break;
                    }
                case 'f':
                    {
                        Environment.Exit(0);
                        break;
                    }
                default:
                    {
                        Console.WriteLine("Please Enter the Correct Input");
                        break;
                    }
                }
            }
        }
    }
}

Answer 1

An example of inheritance in your case would be something like this

namespace ConsoleApplication4
{
    public class car
    {
        //note the absence of static keyword..it means it is an instance method
        //note the virtual keyword..it means derived classes can override the behavior
        public virtual void wheel()
        {
            Console.WriteLine("The wheels of car are rolling");
        }

    }

    public class newmodel : car
    {
        //note the override keyword....it means newmodel overrides the wheel function
        public override void wheel()
        {
            //depending on your needs you may or maynot 
            // need to call the base class function first
            base.wheel();
            Console.WriteLine("And The new rims are rocking");
        }

    }

    class Program
    {
        static void Main()
        {
            //Instead of static methods you create a car object on
            //on which you invoke member functions
            car currentcar = new car();
            while (true)
            {
                Console.WriteLine("Press A to Roll the Wheels baby");
                Console.WriteLine("Press N to switch to new model");
                char c = Convert.ToChar(Console.ReadLine());
                switch (c)
                {
                    case 'a':
                        {
                            currentcar.wheel();
                            break;
                        }
                    case 'n':
                        {
                            currentcar = new newmodel();
                            break;
                        }
                    default:
                        {
                            Console.WriteLine("Please Enter the Correct Input");
                            break;
                        }

                }
            }
        }
    }
}

As you will notice that pressing a will call the wheel function but depending on whether your car is the plain old car or the new model it will print different things to the Console.