Oracle Exam 1Z0-809 Topic 3 Question 79 Discussion

Actual exam question for Oracle's 1Z0-809 exam

Question #: 79
Topic #: 3

[All 1Z0-809 Questions]

Given:

public interface Moveable {

public default void walk (Integer distance) {System.out.println(''Walking'');)

public void run(Integer distance);

}

Which statement is true?

AMoveable can be used as below:Moveable<Integer> animal = n - > System.out.println(''Running'' + n);animal.run(100);animal.walk(20);

BMoveable can be used as below:Moveable<Integer> animal = n - > n + 10;animal.run(100);animal.walk(20);

CMoveable can be used as below:Moveable animal = (Integer n) - > System.out.println(n);animal.run(100);Moveable.walk(20);

DMovable cannot be used in a lambda expression.

Show Suggested Answer

Suggested Answer: D

by Laurel at Dec 05, 2024, 01:59 PM

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Celestine

1 months ago

You know, I'm pretty sure the correct answer is just 'Yes, but only if you're a Jedi master with a lightsaber and the ability to move objects with your mind.'

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Sylvia

1 months ago

I bet the exam writer had a field day coming up with these options. I'm just hoping they didn't forget to include a choice that says 'All of the above, and then some!'

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Beckie

1 months ago

Ah, the age-old question of whether a Moveable can be used in a lambda expression. I think option D is the way to go here, but I'm always open to a good debate on the topic.

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Reuben

14 days ago

I disagree, I believe option A is the correct way to use Moveable in a lambda expression.

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Reuben

17 days ago

I think option D is correct. Lambda expressions can't be used with Moveable.

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2 months ago

I'm not sure, but I think D is the correct answer because the Moveable interface cannot be used in a lambda expression.

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Wow, this question is really testing our understanding of interfaces and lambda expressions! I'm leaning towards option A, since it seems to be the only one that correctly uses the interface and lambda syntax.

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Alishia

1 months ago

I think option D is incorrect because interfaces can be used in lambda expressions.

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Alishia

1 months ago

I agree, option A looks like the correct usage of the interface and lambda expression.

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Eura

2 months ago

I disagree, I believe the correct answer is C because it includes the correct syntax for using the Moveable interface with an Integer parameter.

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Sherell

2 months ago

I think the correct answer is A because it shows the correct usage of the Moveable interface in a lambda expression.

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Oracle Exam 1Z0-809 Topic 3 Question 79 Discussion

Contribute your Thoughts:

Celestine

Sylvia

Beckie

Reuben

Reuben

Lynda

Cherelle

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Elbert

Roosevelt

Diane

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Alishia

Alishia

Eura

Sherell