Oracle 1Z0-808 Quiz 10 Topic 17 Questions 46-50

Question: 1

Which two are benefits of polymorphism? (Choose two.)

AFaster code at runtime

BMore efficient code at runtime

CMore dynamic code at runtime

DMore flexible and reusable code

ECode that is protected from extension by other classes

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Question: 2

Given:

q2_1Z0-808

What is the result?

AmyStr: 9009, myNum: 9009

BmyStr: 7007, myNum: 7007

CmyStr: 7007, myNum: 9009

DCompilation fails

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Question: 3

Given:

q3_1Z0-808

Which option enables the code to compile?

q3_1Z0-808

AOption A

BOption B

COption C

DOption D

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Question: 4

Given the following class:

q4_1Z0-808

Which two changes would encapsulate this class and ensure that the area field is always equal to length * height whenever the Rectangle class is used?

ACall the setArea method at the end of the setHeight method.

BCall the setArea method at the beginning of the setHeight method.

CCall the setArea method at the end of the setLength method.

DCall the setArea method at the beginning of the setLength method.

EChange the setArea method to private.

FChange the area field to public.

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Question: 5

Given the following array:

q5_1Z0-808

Which two code fragments, independently, print each element in this array? (Choose two.)

q5_1Z0-808

AOption A

BOption B

COption C

DOption D

EOption E

FOption F

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Oracle 1Z0-808 Quiz:10 Topic:17 Questions:46-50