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Oracle 1z0-809 Exam With Confidence Using Practice Dumps

Exam Code:
1z0-809
Exam Name:
Java SE 8 Programmer II
Certification:
Java SE
Vendor:
Oracle
Questions:
196
Last Updated:
Nov 23, 2024
Exam Status:
Stable
Oracle 1z0-809

1z0-809: Java SE Exam 2024 Study Guide Pdf and Test Engine

Are you worried about passing the Oracle 1z0-809 (Java SE 8 Programmer II) exam? Download the most recent Oracle 1z0-809 braindumps with answers that are 100% real. After downloading the Oracle 1z0-809 exam dumps training , you can receive 99 days of free updates, making this website one of the best options to save additional money. In order to help you prepare for the Oracle 1z0-809 exam questions and verified answers by IT certified experts, CertsTopics has put together a complete collection of dumps questions and answers. To help you prepare and pass the Oracle 1z0-809 exam on your first attempt, we have compiled actual exam questions and their answers. 

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Java SE 8 Programmer II Questions and Answers

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Question 1

Given:

and the code fragment:

Which two code fragments, when inserted at line n1 independently, enable the code to print TruckCarBike?

Options:

A.

.sorted ((v1, v2) -> v1.getVId() < v2.getVId())

B.

.sorted (Comparable.comparing (Vehicle: :getVName)).reversed ()

C.

.map (v -> v.getVid()).sorted ()

D.

.sorted((v1, v2) -> Integer.compare(v1.getVId(), v2.getVid()))

E.

.sorted(Comparator.comparing ((Vehicle v) -> v.getVId()))

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Question 2

Given the code fragment:

BiFunction val = (t1, t2) -> t1 + t2; //line n1

//line n2

System.out.println(val.apply(10, 10.5));

What is the result?

Options:

A.

20

B.

20.5

C.

A compilation error occurs at line n1.

D.

A compilation error occurs at line n2.

Question 3

You want to create a singleton class by using the Singleton design pattern.

Which two statements enforce the singleton nature of the design? (Choose two.)

Options:

A.

Make the class static.

B.

Make the constructor private.

C.

Override equals() and hashCode() methods of the java.lang.Object class.

D.

Use a static reference to point to the single instance.

E.

Implement the Serializable interface.

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