Free Practice Questions for Oracle 1Z0-811 Exam

Question 1

Given:

What is the result?

AThe program compiles and nothing is printed.

BIteration plus an increasing number is printed 100 times.

CIteration plus an increasing number is printed 99 times.

DAn error occurs during compilation.

Correct Answer: D. An error occurs during compilation.

Question 2

Given the code fragment:

What is the result?

Afalse
true

Btrue
true

Cfalse
false

DA runtime exception is thrown

Correct Answer: B. true true

Question 3

Which statement is valid?

Aint 2 totalScore = 0;

Bint total--score = 0;

Cint totalScore2 = 0;

Dint total score = 0;

Correct Answer: A. int 2 totalScore = 0;

Question 4

Given:

Which statement, when inserted at line n1, enables the Course class to compile?

Aint newFee;

Bdouble newFee;

Clong newFee;

Dfloat newFee;

Correct Answer: B. double newFee;

Question 5

Identify two valid data types for the operands of the addition (+) operator?

Astring

Bboolean

Cnumeric

Darray

Correct Answer: A. string; D. array

Question 6

You have a microprocessor board, such as Raspberry PI, wired to control a drone.

Which edition of Java is geared towards use of simple, closed systems with constrained memory requirements, such as a microprocessor board?

AJava Micro Edition

BJava Standard Edition with a Compact Profile

CJava Enterprise Edition

DJava SE Embedded

Correct Answer: D. Java SE Embedded

Question 7

Identify two features of Java.

Aarchitecture dependent

Bplatform independent

Csingle threaded

Drobust

Correct Answer: B. platform independent; D. robust

Question 8

Which method identifier is correct according to Java naming conventions?

ABillCalculator

BcalculateBill

Ccalculatebill

DCalculator

Correct Answer: D. Calculator

Question 9

Given the code fragment:

Which statement is true?

AThe code results in a compilation error. To make it compile, insert at line n1:
import java.lang.Math;
import java.lang.Random;

BThe code compiles successfully

CThe code results in a compilation error. To make it compile, insert at line n1:
import java.lang;
import java.util;

DThe code results in a compilation error. To make it compile, insert at line n1:
import java.util.*;

Correct Answer: B. The code compiles successfully

Question 10

Given the code fragment:

Which code fragment, when inserted at line n1, enables the code to print one?

Achar var = '1';

BString var = ''1'';

Cint var = 1;

DString var = 1;

Correct Answer: B. String var = ''1'';