Oracle Exam 1Z0-819 Topic 1 Question 91 Discussion

Actual exam question for Oracle's 1Z0-819 exam

Question #: 91
Topic #: 1

[All 1Z0-819 Questions]

Which two statements inserted independently on line 3 will make this code compile?

AReturn new House();

BReturn new House<?>();

CReturn new House<Dog> () ;

DReturn new House <Petdog> () ;

EReturn new House<A> () ;

Show Suggested Answer

Suggested Answer: A, C

by Dalene at Sep 13, 2024, 07:18 AM

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Yolando

6 months ago

B is the way to go, my friend. Who needs specific types when you've got a good old-fashioned '?'? It's the programming equivalent of a blank check.

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Lindsay

5 months ago

No, B is definitely the best choice here. It allows for any type to be returned.

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Graciela

5 months ago

I'm not sure about B, maybe C or E would work better for this code.

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Ranee

6 months ago

I agree, B is the most flexible option. It's like a wildcard for types.

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Clare

6 months ago

I think B is the correct answer. The '?' allows for any type to be returned.

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Maricela

7 months ago

Hmm, I'm torn between B and D. Maybe I should just ask the professor's dog for the answer. They seem to know their stuff.

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Laurene

6 months ago

Maybe we should ask the professor's dog for the answer, they might know which one is right.

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Kris

6 months ago

I disagree, I believe option D is the correct one. It should be Return new House () ;

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Kenda

6 months ago

I think option B is correct. It should be Return new House();

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Annmarie

7 months ago

E is a bit of a wild card, but I'll go with B. Can't go wrong with a good old-fashioned wildcard, am I right?

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Clay

6 months ago

You might be onto something with B. Let's see if that works.

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Long

6 months ago

I see your point, but I still think B is the safest option. It covers all possibilities with the wildcard.

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Dustin

6 months ago

I'm not sure about C. I think D might be the right choice because Petdog could be a subclass of House.

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Rachael

7 months ago

I think C is the correct answer. It specifies the type parameter for the House class.

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Kristal

7 months ago

I'm not sure, but I think option B might also work. It's worth considering.

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Sage

7 months ago

I disagree, I believe option A and D are the correct statements to make the code compile.

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Catalina

8 months ago

I think option C and E will make the code compile.

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Carri

8 months ago

I think B is the correct answer. The generic type parameter in the House class needs to be a valid class, and ? is a valid placeholder for any type.

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Becky

7 months ago

I think C is also a valid option. Using as the generic type parameter should make the code compile.

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Filiberto

7 months ago

I agree, B is the correct answer. The ? placeholder can be used for any type.

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