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Need explanation for assessment test question 14 (Java OCA 8 Programmer I Study Guide, Sybex)

 
Narayana Bojja
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14. Assuming we have a valid, non-null HenHouse object whose value is initialized by the
blank line shown here, which of the following are possible outputs of this application?
(Choose all that apply)




A. The code will not compile because of line 6.
B. The code will not compile because of lines 7–8.
C. The application will compile but not produce any output.
D. The application will output Cluck exactly once.
E. The application will output Cluck more than once.
F. The application will compile but produce an exception at runtime.

I know the output. I want explanation how it would be. Could any one explain , please ??
 
Roel De Nijs
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Narayana Bojja wrote:I know the output. I want explanation how it would be. Could any one explain , please ??

On page XII (bottom) and XIII (top) an excellent explanation is already provided about why the given options answers are correct or incorrect, describing all possible use cases. What do you not understand about this explanation?
 
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