[Thennam Pandian]

Hi,

I have seen a class has "is a" and "has a" relationship with one class. Is that a correct design? If it is correct, let me know the advantage of that design? On what scenario, we need to use this design?

The skeleton of the code :

 

Class A
{
  public void doSomeAction()  {}
}

Class B extends A
{ 
  private A obj;
 
  public void doSomeAction()  
  {
    obj.doSomeAction();
  }
}

This post has been edited by Thennam Pandian: 28 August 2011 - 09:14 PM