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interface inheritance?

 
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code:
interface Component{}
class Container implements Component{
private Component[] children;
}
Is this demonstrate an "is a" relationship?
I thought "is a" only exit between superclass
and subclass. I mean in the case using extends.
But the answer is yes for the above code.
Can someone give me some idea about it?
 
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Both classes and interfaces can be involved in an "is a " relationship.
In java you can use the instanceof operator to test if an object is an instance of a particular class or interface.


Rob
[ January 18, 2002: Message edited by: Rob Ross ]
 
Calanthe Wei
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Thank you very much!
I got it.
 
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hi calenthe,
go to following topic to get little confuse abt thing about the same concept,
Relationship between Interface and implementing class
regards
maulin.
 
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