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Polymorphism

 
Greenhorn
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As per the snippet -
"Any Java object that can pass more than one IS-A test can be considered polymorphic"

Hence, any Java Object other than objects of type Object are polymorphic.

Does the same hold for Interfaces? Please Explain.

Thanks in advance.
 
Ranch Hand
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You can not have object of interface - interfaces can be considered as 100% abstract classes, so they can not be instantiated.
BUT, you can have a reference of interface points on object which implements that interface and you can use that reference in "instanceof test".
 
Pooja Sinha
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Thanks a lot! I got the point
 
Don't get me started about those stupid light bulbs.
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