OOPS in C#

Abstraction in C#

   In this article i have explained what is abstraction and where its used in programming with an example.

 Abstraction is an one of the key concepts of oops. Its is used to expose the necessary information and encapsulate the unnecessary things.This is achieved using access modifiers like private, protected.

Key Note :

 1.Abstract class always act as base class.

 2.Abstract class should contains at least one abstract method.

 3.It contains also concrete methods, virtual methods, properties, variable declaration.

 4.Abstract class feature we have to inherit to the child class, Here we have overrides the abstract  method.

Example : 

       I have a take process of mobile manufacture and development.Initially, a mobile have basic features and functionality.It will be modified/Enhanced based on companies.

See example:

  Basic Mobile Feature : MobileFeatures

              public abstract class MobileFeatures

                  {

                      public abstract void Display();

                      public abstract void Speaker();

                      

                      public virtual string Wifi()

                      {

                          return "Wifi - Basic Featues";

                      }

                      public virtual string Camera()

                      {

                          return "Camera - Basic Featues";

                      }

                  }

  One mobile company(Samsung) is develop mobile inherit from Basic mobile feature. And its default implementation of Wifi and Camera functionality.We want to modify the those functionality,to overrides to derived class otherwise it working as default.

      Override the Basic Feature : SamsungGalaxyS6 

              public class SamsungGalaxyS6 : MobileFeatures

                  {

                      static SamsungGalaxyS6()

                      {

                      }

        

                      public override void Display()

                      {

                          Console.WriteLine("Display - Integrate functionality");

                      }

                      public override void Speaker()

                      {

                          Console.WriteLine("Speaker - Integrate functionality");

                      }

                      public override string Camera()

                      {

                          return "Camera - Modified Features";

                      }

                  }

     Access mobile functionality 

        Bellow , To create a instance of the sub class and call the methods.

                   class Program

                       {

                    static void Main(string[] args)

                           {

                               SamsungGalaxyS6 objAbs = new SamsungGalaxyS6();

                               objAbs.Camera();

                               objAbs.Display();

                               objAbs.Speaker();

                               objAbs.Wifi();

                           }

                       }