C#•2y ago

✅ abstract class - default value

Hello, I have a simple code:

public abstract class Vehicle 
{
  public int speed = 1;

  public void PrintSpeed() 
  {
    Console.WriteLine(speed);
  }
}

public class Car : Vehicle 
{
  public int speed = 9;

  public void DoSomething() 
  {
    // ....
    PrintSpeed(); // Here it prints 1, but I want it to print 9
  }
}

public abstract class Vehicle 
{
  public int speed = 1;

  public void PrintSpeed() 
  {
    Console.WriteLine(speed);
  }
}

public class Car : Vehicle 
{
  public int speed = 9;

  public void DoSomething() 
  {
    // ....
    PrintSpeed(); // Here it prints 1, but I want it to print 9
  }
}

Is it possible to have an abstract class hold default parameter but when I override that then when I call the function it will use the overridden parameter in the child class?

5 Replies

phaseshift•2y ago

you could use a constructor argument in the base class

popcornOP•2y ago

And it's not possible without constructor?

phaseshift•2y ago

you could have a protected virtual method instead (or virtual property, I guess)

popcornOP•2y ago

Okay, virtual property is what Im looking for I think. Thanks

Denis•2y ago

Consider closing this question using /close

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✅ abstract class - default value