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POIs this really Dynamic Polymorphism? What information is available to the compiler when we use a new opearator to instantiate a class?
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2012-01-26T05:05:20.213
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2012-05-04T01:39:25.240
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2012-01-27T06:48:10.363
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Body
<p>It us generally said that when we do <code>Set<Stamp> stamps= new HashSet<Stamp>(); stamps.add(new Stamp());</code> it is an example of dynamic polymorphism . I find this confusing because when the code gets compiled the compiler knows ahead of time that <code>stamps</code> refers to an Object of type <code>HashSet<Stamp></code> . So it knows how to deal with the add method during compile time only . How can this be an example of dynamic polymorphism? The basic difference between using the new operator and Class.forName().getInstance() is that in the former case the compiler knows the type of Class that we are trying to instantiate ?</p>
Tags
<java><oop><polymorphism>
Title
Is this really Dynamic Polymorphism? What information is available to the compiler when we use a new opearator to instantiate a class?
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