why is it if B extends A...then B is an A
and C Extends B then C is An A
that D extends C but is not an A ?
About Question com.enthuware.ets.scjp.v6.2.526 :
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Re: About Question com.enthuware.ets.scjp.v6.2.526 :
D is certainly a A. But do you see an object of class D anywhere in the code? In other words, does the variable a point to an object see that is-a D ?
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