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Is a class subclass of itself?
 
Desperado
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Not in Java.
 
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The complete reference by Patrick Naughton says it is - ie. every class is a sub class of itself. Only a "strict" sub class of a class cannot include itself.
 
Wanderer
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Different people in OOP have slightly different definitions of "subclass", but in this case the definition Naughton uses is not the one used in Java. The JLS has a precise definition of subclass which does not include the class itself - only other classes which are extended from it, and their "descendents". If you see the word "subclass" on the exam, you can assume this is the definition used.
 
Anonymous
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Originally posted by Jim Yingst:
Different people in OOP have slightly different definitions of "subclass", but in this case the definition Naughton uses is not the one used in Java. The JLS has a precise definition of subclass which does not include the class itself - only other classes which are extended from it, and their "descendents". If you see the word "subclass" on the exam, you can assume this is the definition used.


Thanks! All for replying.
 
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