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Jaworski mock - an example of polymorphism (overriding or overloading?)  RSS feed

 
Ranch Hand
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Hi all,
I found this one in Jaworski's mock exam.
Which is an example of polymorphism.
a. inner classes.
b. anonymous classes.
c. method overloading.
d. method overriding.
I picked d. But the answer is c. Could some one please help me with this.
Thanks.
 
Ranch Hand
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D) like you.
I think it's a typo in their answer.
JR
 
Rancher
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I would also say d. Overriding is what causes a polymorphism issue, not overloading.
 
Wanderer
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I also agree, and so I'll move this to Mock Exam Errata.
 
Greenhorn
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Method overloading is one of the ways that Java implements polymorphism.
Overridden methods allow Java to support run-time polymorphism.
ie. Overridden methods are another way that Java implements the "one interface, multiple methods" aspect of polymorphism.
this answer is according to my knowledge gained from a book called "The Complete Reference (JAVA2 third edition)"
please check pg.158(Overloading Methods) & pg.215(Overridden Methods)
if this is not the case then please give me a detailed explaination for this.
 
Greenhorn
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I think that both over-riding and overloading are forms of Polymorphism - "one interface, multiple implementations". But most of the OOP books claim that over-riding is the 'true polymorphism' as it allows runtime polymorphism.

Originally posted by VVed:
Method overloading is one of the ways that Java implements polymorphism.
Overridden methods allow Java to support run-time polymorphism.
ie. Overridden methods are another way that Java implements the "one interface, multiple methods" aspect of polymorphism.
this answer is according to my knowledge gained from a book called "The Complete Reference (JAVA2 third edition)"
please check pg.158(Overloading Methods) & pg.215(Overridden Methods)
if this is not the case then please give me a detailed explaination for this.


 
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