Oracle 1z1-819 Actual Free Exam Questions & Community Discussion

Exam Code/Number: 1z1-819
Exam Name/Title: Java SE 11 Developer
Certification Provider: Oracle
Corresponding Certification: Oracle Java SE

Exam Questions: 297
Updated On: Jul 15, 2026

Question #19

Given the code fragment:

You want to examine whether path is a directory.
Which code inserted on line 1 will accomplish this?

A. BasicFileAttributes attributes =Files.getAttribute (path, ''insdirectory'');

B. BasicFileAttributes attributes = Files isDirectory (path);

C. BasicFileAttributes attributes = Files.readAttributes(path, BasicFileAttributes.class

D. BasicFileAttributes attributes = Files, readAttributes (path, FileAttributes, class);

Discussion 0

Correct Answer: D Vote an answer

Question #20

Given the code fragment:

What is the result?

A. 0 8

B. 0

C. 0 8 10

D. The code prints nothing.

E. 0 4 9

Discussion 0

Correct Answer: A Vote an answer

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Question #21

Given:

What is the result?

A. The compilation fails at line 8.

B. The compilation fails at line 9.

C. Hello World

D. The compilation fails at line 2.

Discussion 0

Correct Answer: C Vote an answer

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Question #22

Given:

Which two are correct? (Choose two.)

A. Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5.

B. Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5, but the order is unpredictable.

C. The output will be exactly 2 1 3 4 5.

D. The program prints 1 4 2 3, but the order is unpredictable.

E. Replacing forEach() with forEachOrdered(), the program prints 1 2 3 4 5.

Discussion 0

Correct Answer: D,E Vote an answer

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Question #23

Given the code fragment:

What should be inserted at line n1 so that the code fragment prints Name is required?

A. name.trim() == '' ''

B. name, isBlanl ()

C. name.isEmpty

D. name. compareTo('' '') == 0

Discussion 0

Correct Answer: B Vote an answer

Question #24

Given:

You want to use the myResource class in a try-with-resources statement. Which change will accomplish this?

A. Implement AutoCloseable and override the autoClose method.

B. Extend AutoCloseable and override the autoClose method.

C. Extend AutoCloseable and override the close method.

D. Implement AutoCloseable and override the close method.

Discussion 0

Correct Answer: D Vote an answer

Question #25

Which module-info.java is correct for a service provider for a print service defined in the PrintServiceAPI module?

A. module PrintServiceProvider {
requires PrintServiceAPI;
uses com.provider.PrintService;
}

B. module PrintServiceProvider {
requires PrintServiceAPI;
provides org.printservice.spi.Print with
com.provider.PrintService;
}

C. module PrintServiceProvider {
requires PrintServiceAPI;
exports org.printservice.spi.Print with
D18912E1457D5D1DDCBD40AB3BF70D5D
com.provider.PrintService;
}

D. module PrintServiceProvider {
requires PrintServiceAPI;
exports org.printservice.spi;
}

Discussion 0

Correct Answer: D Vote an answer

Question #26

Given:

executed with this command:
java Main one two three
What is the result?

A. The compilation fails.

B. 0). one

C. 0). one1). two2). three

D. A java.lang.NullPointerException is thrown.

E. It creates an infinite loop printing:0). one1). two1). two...

Discussion 0

Correct Answer: E Vote an answer

Question #27

A company has an existing Java app that includes two Java 8 jar files, sales-3.10. jar and clients-10.2.jar.
The jar file ,sales -8, 10, jar reference packages in clients -10.2 jar, but clients-10.2 jar does not reference packages in sales -8.10, jar.
They have decided to modularize clients-10.2.jar.
Which module-info. Java file would work for the new library version clients-10.3 jar?

Discussion 0

Correct Answer: D Vote an answer

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