[Jul-2023] Oracle Java SE 1Z0-819 Exam Practice Test Questions Dumps Bundle! [Q110-Q132]

July 18, 2023 admin 0 Comments

5/5 - (2 votes)

[Jul-2023] Oracle Java SE 1Z0-819 Exam Practice Test Questions Dumps Bundle!

2023 Updated 1Z0-819 PDF for the 1Z0-819 Tests Free Updated Today!

Oracle 1z1-819 (Java SE 11 Developer) certification exam is designed for Java developers who want to validate their skills in Java programming. 1Z0-819 exam covers a wide range of topics including Java syntax, data types, control structures, and object-oriented programming concepts. 1Z0-819 exam also covers advanced topics such as exception handling, multithreading, and database connectivity. Passing 1Z0-819 exam demonstrates that a candidate has the necessary skills to develop applications using the Java programming language.

NEW QUESTION 110
Examine this excerpt from the declaration of the java.se module:

What does the transitive modifier mean?

Only a module that requires the java.se module is permitted to require the java.sql module.

Any module that requires the java.se module does not need to require the java.sql module.

Any module that attempts to require the java.se module actually requires the java.sql module instead.

Any module that requires the java.sql module does not need to require the java.se module.

NEW QUESTION 111
Which is true?

Code compiles but throws a runtime exception when run.

It prints 666.

The code compiles and runs successfully but with a wrong answer (i.e., a bug).

The code does not compile successfully.

NEW QUESTION 112
Given this enum declaration:

Examine this code:
System.out.println(Alphabet.getFirstLetter());
What code should be written at line 3 to make this code print A?

final String getFirstLetter() { return A.toString(); }

static String getFirstLetter() { return Alphabet.values()[1].toString(); }

static String getFirstLetter() { return A.toString(); }

String getFirstLetter() { return A.toString(); }

NEW QUESTION 113
Given:

What is the result?

The compilation fails due to an error in line 4.

The compilation fails due to an error in line 3.

The compilation fails due to an error in line 2.

The compilation fails due to an error in line 1.

The compilation fails due to an error in line 5.

NEW QUESTION 114
Given:

Which statement is true?

Class Tester does not need to import java.time.LocalDate because it is already visible to members of the package test.

All classes from the package java.time. are loaded for the class Diary.

Only LocalDate class from java.time package is loaded.

Tester must import java.time.LocalDate in order to compile.

NEW QUESTION 115
Given:

Which two lines of code when inserted in line 1 correctly modifies instance variables? (Choose two.)

setCCount(c) = cCount;

tCount = tCount;

setGCount(g);

cCount = setCCount(c);

aCount = a;

NEW QUESTION 116
Given the code fragment:

Which “for” loop produces the same output?

Option A

Option B

Option C

Option D

NEW QUESTION 117
Given:

Which statement is equivalent to line 1?

double totalSalary = list.stream().map(e > e.getSalary() * ratio).reduce (bo).ifPresent (p > p.doubleValue());

double totalSalary = list.stream().mapToDouble(e > e.getSalary() * ratio).sum;

double totalSalary = list.stream().map(Employee::getSalary * ratio).reduce (bo).orElse(0.0);

double totalSalary = list.stream().mapToDouble(e > e.getSalary() * ratio).reduce(starts, bo);

NEW QUESTION 118
Given:

Which three classes successfully override showFirst ()?

NEW QUESTION 119
Given:

Which expression when added at line 1 will produce the output of 1.17?

float z = (float)(Math.round((float)x/y*100)/100);

float z = Math.round((int)(x/y),2);

float z = Math.round((float)x/y,2);

float z = Math.round((float)x/y*100)/(float)100;

NEW QUESTION 120
Given:

Which code fragment on line 1 makes the m map contain the employee with the highest salary for each neighborhood?
A)

B)

C)

D)

Option A

Option B

Option C

Option D

NEW QUESTION 121
Given:
public class X {
}
and
public final class Y extends X {
}
What is the result of compiling these two classes?

The compilation fails because there is no zero args constructor defined in class X.

The compilation fails because either class X or class Y needs to implement the toString() method.

The compilation fails because a final class cannot extend another class.

The compilation succeeds.

NEW QUESTION 122
Given:

This code results in a compilation error.
Which code should be inserted on line 1 for a successful compilation?

Consumer consumer = msg -> { return System.out.print(msg); };

Consumer consumer = var arg -> {System.out.print(arg);};

Consumer consumer = (String args) -> System.out.print(args);

Consumer consumer = System.out::print;

NEW QUESTION 123
Given:

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

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

Change Line 2 access modifier to protected:protected void checkValue(Object value)throws IllegalArgumentException;

Change Line 1 to a class:public class API {

Change Line 1 to extend java.lang.AutoCloseable:public interface API extends AutoCloseable {

Change Line 2 to an abstract method:public abstract void checkValue(Object value)throws IllegalArgumentException;

NEW QUESTION 124
Given:

You want the code to produce this output:
John
Joe
Jane
Which code fragment should be inserted on line 1 and line 2 to produce the output?

Insert Comparator<Person> on line 1.
Insert
public int compare(Person p1, Person p2) {
return p1.name.compare(p2.name);
}
on line 2.

Insert Comparator<Person> on line 1.
Insert
public int compareTo(Person person) {
return person.name.compareTo(this.name);
}
on line 2.

Insert Comparable<Person> on line 1.
Insert
public int compare(Person p1, Person p2) {
return p1.name.compare(p2.name);
}
on line 2.

Insert Comparator<Person> on line 1.
Insert
public int compare(Person person) {
return person.name.compare(this.name);
}
on line 2.

NEW QUESTION 125
Which method throws an exception for not-a-number and infinite input values?
A)

B)

C)

D)

Option A

Option B

Option C

Option D

NEW QUESTION 126
Given:

What code must you insert on Line 1 to enable the code to print Hello world?

Hello.Greeting myG = new Hello.Greeting() myG.sayHi();

Hello myH = new Hello();
Hello.Greeting myG = myH.new Greeting();
myG.sayHi();

Hello myH = new Hello();
Hello.Greeting myG = myH.new Hello.Greeting();
myG.sayHi();

Hello myH = new Hello(); Greeting myG = new Greeting(); myG.sayHi ();

NEW QUESTION 127
Given the code fragment:

Which can replace line 11?

UnaryOperator<Interger > uo = (var x ) -> (x * 3);

UnaryOperator<Interger >uo = var x -> { return x 3 ; };

UnaryOperator<Interger >uo = x -> { return x * 3; };

UnaryOperator<Interger >uo = (int x) -> x * 3;

NEW QUESTION 128
Given:
List<String> longlist = List.of(“Hello”,”World”,”Beat”);
List<String> shortlist = new ArrayList<>();
Which code fragment correctly forms a short list of words containing the letter “e”?

Option A

Option B

Option C

Option D

NEW QUESTION 129
Given:

executed with this command:
java Main one two three
What is the output of this class?

The compilation fails.

1) one2) two3) three

A java.lang.ArrayIndexOutOfBoundsException is thrown.

1) one

nothing

NEW QUESTION 130
Which describes an aspect of Java that contributes to high performance?

Java prioritizes garbage collection.

Java has a library of built-in functions that can be used to enable pipeline burst execution.

Java monitors and optimizes code that is frequently executed.

Java automatically parallelizes code execution.

NEW QUESTION 131
Given:

What is the output?

Hello world!Bonjour le monde!

Hello world!Hello world!

Bonjour le monde!Hello world!

Bonjour le monde!Bonjour le monde!

NEW QUESTION 132
Which statement about a functional interface is true?

It must be defined with the public access modifier.

It must be annotated with @FunctionalInterface.

It is declared with a single abstract method.

It is declared with a single default method.

It cannot have any private methods and static methods.

Loading …

Oracle 1z1-819 (Java SE 11 Developer) Exam is a certification exam designed for Java developers who want to validate their skills and knowledge in Java SE 11 programming. 1Z0-819 exam is intended for experienced programmers who have a good understanding of Java and its related technologies. Passing 1Z0-819 exam can help individuals to gain recognition and credibility in the industry and can enhance their career opportunities.

Fully Updated Dumps PDF – Latest 1Z0-819 Exam Questions and Answers: https://www.topexamcollection.com/1Z0-819-vce-collection.html

1Z0-819 Practice Tests

[Jul-2023] Oracle Java SE 1Z0-819 Exam Practice Test Questions Dumps Bundle! [Q110-Q132]
[Q130-Q153] Get New 2025 Oracle 1Z0-819 Exam Dumps Bundle On flat Updated Dumps!

Related Certifications

1z0-1109-22
1Z0-1064-26
1z0-1046-25
1z0-1042-22
1z0-1111-23
1z0-1115-23
1Z0-1053-21
1Z0-082
1Z0-1055-24
1z0-1112-2