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samar
Java interface reference
2 Answer(s)      3 years and 6 months ago
Posted in : Java Interview Questions


When can an object reference be cast to an interface reference?

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October 27, 2010 at 3:48 PM


Hi,

Here is the answer.

An object reference be cast to an interface reference when the object implements the referenced interface.

Thanks.



August 4, 2012 at 12:53 PM


Yes it is possible.The class which you want to cast,it should be implemented that interface . Example:

List<String> list=new ArrayList<String> ();

List is interface, and arraylist is implemented by list. so that we can cast it into list reference.



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