Practice Examples and Dumps & Tips for 2023 Latest 1Z0-819 Valid Tests Dumps [Q20-Q42]

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Practice Examples and Dumps & Tips for 2023 Latest 1Z0-819 Valid Tests Dumps

Latest [Sep 15, 2023] 100% Passing Guarantee – Brilliant 1Z0-819 Exam Questions PDF

QUESTION 20
Given:

What is the result?

A java.util.NoSuchElementException is thrown at run time.

Ans : a

The compilation fails.

Ans :

QUESTION 21
Given the Person class with age and name along with getter and setter methods, and this code fragment:

What will be the result?

Aman Tom Peter

Tom Aman Peter

Aman Peter Tom

Tom Peter Aman

QUESTION 22
Which two are functional interfaces? (Choose two.)

Option A

Option B

Option C

Option D

Option E

QUESTION 23
Which module-info.java is correct for a service provider for a print service defined in the PrintServiceAPI module?

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

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

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

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

QUESTION 24
Given:

What is the result?

Good Morning, Potter

Good Night, Potter

Good Morning, Harry

Good Night, Harry

QUESTION 25
Given:

What is the result?

The compilation fails.

Y@<< hashcode>>

Null

QUESTION 26
Which two modules include APIs in the Java SE Specification? (Choose two.)

java.logging

java.desktop

javafx

jdk.httpserver

jdk.jartool

QUESTION 27
Your organization makes mlib.jar available to your cloud customers. While working on a code cleanup project for mlib.jar, you see this method by customers:

What security measures should be added to this method so that it meets the requirements for a customer accessible method?

Create a method that validates the hostName and portNumber parameters before opening the socket.

Make enableService private.

Enclose the call to new Socket In an AccessController.doPrivileged block.

QUESTION 28
Given:

What is the result?

2134

234

2341

214

QUESTION 29
Given:

A) An exception is thrown at run time.
B)

C) The compilation fails due to an error on line 2.
D) The compilation fails due to an error on line 1.
E)

F)
The compilation fails due to an error on line 3.

Option A

Option B

Option C

Option D

Option E

Option F

QUESTION 30
Given:
var data = new ArrayList<>();
data.add(“Peter”);
data.add(30);
data.add(“Market Road”);
data.set(1, 25);
data.remove(2);
data.set(3, 1000L);
System.out.print(data);
What is the output?

[Market Road, 1000]

[Peter, 30, Market Road]

[Peter, 25, null, 1000]

An exception is thrown at run time.

QUESTION 31
Given:

What is the result?

3 5 3 3

3 3 3 3

3 5 3 5

5 5 3 3

QUESTION 32
Given an application with a main module that has this module-info.java file:

Which two are true? (Choose two.)

A module providing an implementation of country.CountryDetails can be compiled and added without recompiling the main module.

A module providing an implementation of country.CountryDetails must have a requires main; directive in its module-info.java file.

An implementation of country.countryDetails can be added to the main module.

To compile without an error, the application must have at least one module in the module source path that provides an implementation of country.CountryDetails.

To run without an error, the application must have at least one module in the module path that provides an implementation of country.CountryDetails.

Reference:
/java-9-error-not-in-a-module-on-the-module-source- path

QUESTION 33
Given:

Which two method implementations are correct, when inserted independently in line 1? (Choose two.)

Option A

Option B

Option C

Option D

Option E

QUESTION 34
Given the declaration:

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

@Resource({“Customer1”, “Customer2”})

@Resource(value={{}})

@Resource

@Resource(“Customer1”)

@Resource()

QUESTION 35
Given:

What will secure this code from a potential Denial of Service condition?

After Line 4, add indexReader.close().

On Line 3, enclose processData(dataReader) with try with resources.

After Line 3, add dataReader.close().

On Line 1, use try with resources when opening each dataReader.

Before Line 1, check the size of dataFiles to make sure it does not exceed a threshold.

QUESTION 36
Given the code fragment:

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

BasicFileAttributes attributes = Files isDirectory (path);

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

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

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

QUESTION 37
Given the code fragment:

What is the result?

13 5 7 9

1 3 5 7 9 11

2 4 6 B 10

2 4 6 8

QUESTION 38
Given:

What is the result?

The compilation fails due to an error in line 1.

QUESTION 39
Given the Customer table structure:
* ID Number Primary Key
* NAME Text Nullable
Given code fragment:

Which statement inserted on line 14 sets NAME column to a NULL value?