Objects without an immediate common parent and polymorphism

Question

Instructions here:

 

[img]http://i.imgur.com/Nr2o9nt.png[/img]

http://i.imgur.com/Nr2o9nt.png

 

[img]http://i.imgur.com/YwxGjhm.png[/img] 

http://i.imgur.com/YwxGjhm.png

 

Hi, If I understand the question right, the CalculateComplexityScore() method should take either a Cat, Dog or Butterfly object and perform actions on their properties (e.g. on ActionType) depending on wither the object is of Cat, Dog or Butterfly.

 

But Cat, Dog and Butterfly do not have a common immediate parents. They can't be redefined to have one. I have given CatBase, DogBase and Butterfly base a common parent: AnimalBase, but this would allow CalculateComplexityScore to take objects of CatBase, DogBase or ButterflyBase. If you read the instructions, this should not happen.

 

My attempt to solve this was to define an ActionType property as a virtual property in AnimalBase and have Cat, Dog and Butterfly override it but this is still not quite right.

Any help before tomorrow?

Answer 1

Hello 

 

To acess such functionality , there two options :

 

1 . To use predefined method

 

2 . To use it's DLL 

 

For example please find folllowing article for brightness control with c# :

 

https://www.codeproject.com/Tips/855454/How-To-Change-Screen-Brightness-in-Csharp 

 

https://www.codeproject.com/Articles/47355/Setting-Screen-Brightness-in-C

 

Thanks 

Answer 2

Hello 

 

There are different DLL's available for that 

 

Just google it and you can find many of them easily 

 

Thanks 

Answer 3

How about other types of native controls? Like volume,pause, print screen,esp, others.....???