C# Class Inheritance

Question

greetings. i have the following class:

public class Ship
{
    public enum ValidShips
    {
        Minesweeper,
        Cruiser,
        Destroyer,
        Submarine,
        AircraftCarrier
    }

    public enum ShipOrientation
    {
        North,
        East,
        South,
        West
    }

    public enum ShipStatus
    {
        Floating,
        Destroyed
    }

    public ValidShips shipType { get; set; }

    public ShipUnit[] shipUnit { get; set; }

    public ShipOrientation shipOrientation { get; set; }

    public ShipStatus shipStatus { get; set; }

    public Ship(ValidShips ShipType, int unitLength)
    {
        shipStatus = ShipStatus.Floating;

        shipType = ShipType;

        shipUnit = new ShipUnit[unitLength];

        for (int i = 0; i < unitLength; i++)
        {
            shipUnit[i] = new ShipUnit();
        }
    }
}

i would like to inherit this class like so:

public class ShipPlacementArray : Ship
{

}

this makes sense.

what i would like to know is how do i remove certain functionality of the base class?

for example:

    public ShipUnit[] shipUnit { get; set; } // from base class

i would like it to be:

    public ShipUnit[][] shipUnit { get; set; } // in the derived class

my question is how do i implement the code that hides the base class shipUnit completely?

otherwise i will end up with two shipUnit implementation in the derived class.

thank you for your time.

ShipPlacementArray deals with only one ship. but the array reflects the directions the ship can be placed at.

Answer 1

what i would like to know is how do i remove certain functionality of the base class?

You don't. This is not the point of inheritance. The point of inheritance is to inherit the base class functionality -- all of it -- and adding/changing stuff. It's for "is-a" relations, e.g., "a car is a vehicle."

my question is how do i implement the code that hides the base class shipUnit completely?

It sounds like you want ShipPlacementArray to be a wrapper, or container, of multiple Ship objects. This does not seem like a case where inheritance should be used.

Ask yourself the question: "is a ShipPlacementArray a kind of Ship?"