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1Z0 819 Demo

The document is a demo version of the Oracle 1Z0-819 exam questions and answers, providing limited content for users to test their knowledge. It includes sample questions with multiple-choice answers and explanations for the correct answers. Additionally, it offers a link to purchase the full exam PDF and a promotional discount for users interested in obtaining the complete material.

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harperella546
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14 views10 pages

1Z0 819 Demo

The document is a demo version of the Oracle 1Z0-819 exam questions and answers, providing limited content for users to test their knowledge. It includes sample questions with multiple-choice answers and explanations for the correct answers. Additionally, it offers a link to purchase the full exam PDF and a promotional discount for users interested in obtaining the complete material.

Uploaded by

harperella546
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Oracle

1Z0-819 Exam
Oracle Java

Questions & Answers


(Demo Version - Limited Content)

Thank you for Downloading 1Z0-819 exam PDF Demo

Get Full File:

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Questions & Answers PDF Page 12

Version: 5.1

Question: 1

Given:

What is the result?

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A. nothing
B. It fails to compile.
C. 0
D. A java.lang.IllegalArgumentException is thrown.
E. 10

Answer: B
Explanation:

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Questions & Answers PDF Page 4

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Questions & Answers PDF Page 5

Question: 2

Given:

Which two changes need to be made to make this class compile? (Choose two.)

A. Change Line 1 to an abstract class:public abstract class API {


B. Change Line 2 access modifier to protected:protected void checkValue(Object value)throws
IllegalArgumentException;
C. Change Line 1 to a class:public class API {
D. Change Line 1 to extend java.lang.AutoCloseable:public interface API extends AutoCloseable {
E. Change Line 2 to an abstract method:public abstract void checkValue(Object value)throws
IllegalArgumentException;

Answer: C,E
Explanation:

Question: 3

Which two modules include APIs in the Java SE Specification? (Choose two.)

A. java.logging
B. java.desktop

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C. javafx
D. jdk.httpserver
E. jdk.jartool

Answer: A,D
Explanation:

Reference: https://docs.oracle.com/javase/9/docs/api/overview-summary.html

Question: 4

Given:

What is the output?

A. 300
B. Exception
C. 200
D. 100

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Questions & Answers PDF Page 7

Answer: A
Explanation:

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Question: 5

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Which two statements are true about the modular JDK? (Choose two.)

A. The foundational APIs of the Java SE Platform are found in the java.base module.
B. An application must be structured as modules in order to run on the modular JDK.
C. It is possible but undesirable to configure modules’ exports from the command line.
D. APIs are deprecated more aggressively because the JDK has been modularized.

Answer: A, C

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