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 the following segment of code:

q3_1Z0-808

Which two statements, if either were true, would make the code compile? (Choose two.)

AMotorCycle is an interface that implements the Cycle class.

BCycle is an interface that is implemented by the MotorCycle class.

CCycle is an abstract superclass of MotorCycle.

DCycle and MotorCycle both extend the Transportation superclass.

ECycle and MotorCycle both implement the Transportation interface.

FMotorCycle is a superclass of Cycle.

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Question: 4

Given the code fragment:

q4_1Z0-808

Which three code fragments can be independently inserted at line n1 to enable the code to print one?

AByte x = 1;

Bshort x = 1;

CString x = '1';

DLong x = 1;

EDouble x = 1;

FInteger x = new Integer ('1');

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Question: 5

Which two class definitions fail to compile?

Aabstract class A3 {private static int i;public void doStuff(){}public A3(){}}

Bfinal class A1 {public A1(){}}

Cpublic class A2 {private static int i;private A2(){}}

Dclass A4 {protected static final int i;private void doStuff(){}}

Efinal abstract class A5 {protected static int i;void doStuff(){}abstract void doIt();}

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