IS A and HAS A Relationship

[kiranb reddy]

Hi All,

Can anyone explain the exact difference between IS-A and HAS-A relationship with an example.

Please help me.


Thanks and Regards,
Kiran

[Thomas Thevis]

Hello Kiran,

try to use the search function of the forum first. You will come to threads like HAS-A relationship?.
If you don't find an answer to your question, come back afterwards.

Regards,
Thomas

[fred rosenberger]

an apple IS A fruit.

an apple HAS A seed.

a Ford Mustang IS A car

a Ford Mustang HAS A windshield.

[John Eric]

consider this example:-

class A{
...
}

class B extends A{

....
}
the above code shows IS A relationship, this can be implemented as Inheritance.

Class Library{
Book b=new Book();
CD cc=new CD();
}

this shows HAS A relationship.
HAS A also know as composition.

[Nitesh Nandwana]

Best artical on IS-A and HAS-A relationship