Hide method ( encapsulate)

[Matt]

Hiding Method. How to Hide tx.carry()
I want tx.carry not to be reached on test();
any ideas?
public abstract class Car
{
public abstract void run();
public abstract void carry();
}
public class Taxi : Car
{
public override void run()
{Console.WriteLine("Taxi");}
}
public class test
{
public static void main(string[] args)
{
Taxi tx = new Taxi();
tx.run();
tx.carry();// i dont want this to be here
}
}

 

[Jon Skeet [C# MVP]]

Hiding Method. How to Hide tx.carry()
I want tx.carry not to be reached on test();
any ideas?

You can't. Liskov's Substitutability Principle says that you must be
able to treat a Taxi as a Car - therefore you have to be able to call
Carry.

<snip>

 

[Guest]

Hi Matt,
why not just make carry() a protected method, so that classes that inherit
from Car can see this method internally, but still do not expose this on the
public interface of the object.

Mark R Dawson
http://www.markdawson.org