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

The following grid shows the state of a 2D array:

q3_1Z0-808

This grid is created with the following code:

q3_1Z0-808

Which line of code, when inserted in place of //line n1, adds an X into the grid so that the grid contains three consecutive X's?

Agrid[1][3] = 'X';

Bgrid[3][1] = 'X';

Cgrid[0][2] = 'X';

Dgrid[2][0] = 'X';

Egrid[1][2] = 'X';

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Question: 4

Given the following class declarations:

Which answer fails to compile?

q4_1Z0-808

AOption A

BOption B

COption C

DOption D

EOption E

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Question: 5

Given:

q5_1Z0-808

And given the commands:

javac Test.Java

Java Test Hello

What is the result?

ASuccess

BFailure

CCompilation fails.

DAn exception is thrown at runtime

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