Most Recent Oracle 1Z0-819 Exam Questions & Answers

Prepare for the Oracle Java SE 11 Developer exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.

QA4Exam focus on the latest syllabus and exam objectives, our practice Q&A are designed to help you identify key topics and solidify your understanding. By focusing on the core curriculum, These Questions & Answers helps you cover all the essential topics, ensuring you're well-prepared for every section of the exam. Each question comes with a detailed explanation, offering valuable insights and helping you to learn from your mistakes. Whether you're looking to assess your progress or dive deeper into complex topics, our updated Q&A will provide the support you need to confidently approach the Oracle 1Z0-819 exam and achieve success.

The questions for 1Z0-819 were last updated on Nov 22, 2024.

Viewing page 1 out of 59 pages.
Viewing questions 1-5 out of 296 questions

Get All 296 Questions & Answers

Question No. 1

Given:

Which statement on line 1 enables this code to compile?

AFunction<Integer, Integer> f = n > n * 2;

BFunction<Integer> f = n > n * 2;

CFunction<int> f = n > n * 2;

DFunction<int, int> f = n > n * 2;

EFunction f = n > n * 2;

Show Answer

Correct Answer: A

Question No. 2

Given the declaration:

Examine this code fragment:

/* Loc1 */ class ProcessOrders { ... }

Which two annotations may be applied at Loc1 in the code fragment? (Choose two.)

A@Resource(priority=100)

B@Resource(priority=0)

C@Resource(name=''Customer1'', priority=100)

D@Resource(name=''Customer1'')

E@Resource

Show Answer

Correct Answer: A, B

Question No. 3

Given:

Which two allow a.Main to allocate a new Person? (Choose two.)

AIn Line 1, change the access modifier to privateprivate Person() {

BIn Line 1, change the access modifier to publicpublic Person() {

CIn Line 2, add extends Person to the Main classpublic class Main extends Person {and change Line 3 to create a new Main objectPerson person = new Main();

DIn Line 2, change the access modifier to protectedprotected class Main {

EIn Line 1, remove the access modifierPerson() {

Show Answer

Correct Answer: B, C

Question No. 4

Given:

Why does D cause a compilation error?

AD inherits a() only from C.

BD inherits a() from B and C but the return types are incompatible.

CD extends more than one interface.

DD does not define any method.

Show Answer

Correct Answer: B

Question No. 5

Given:

executed using this command:

java Myclass My Car is red

What is the output of this class?

ACar--red--My

BMy--Car--is

CMy--is--java

Djava--Myclass--My

EMyclass--Car--red

Show Answer

Correct Answer: A

Unlock All Questions for Oracle 1Z0-819 Exam

Full Exam Access, Actual Exam Questions, Validated Answers, Anytime Anywhere, No Download Limits, No Practice Limits

Get All 296 Questions & Answers