Lead4Pass 1Z0-819 Exam Dumps Real 1Z0-819 Exam Study Guide – Jan 2023

Lead4Pass 1Z0-819 Exam Dumps

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[Newest Version] Free 1Z0-819 Exam Dumps and Exam Questions Study Guide

Question 1:

Given:

1Z0-908 exam questions q1 free

and omitting the throws FooException clause results in a compilation error. Which statement is true about FooException?

A. FooException is a subclass of RuntimeError.

B. FooException is unchecked.

C. The body of foo can only throw FooException.

D. The body of foo can throw FooException or one of its subclasses.

Correct Answer: D

Reference: https://stackoverflow.com/questions/47871728/throwing-a-parent-class- exception-force-to-throw-its-subclass-exception-event-t


Question 2:

Given the code fragment:

1Z0-908 exam questions q2 free

You want to display the value of the currency as $100.00. Which code inserted on line 1 will accomplish this?

A. NumberFormat formatter = NumberFormat.getInstance(locale).getCurrency();

B. NumberFormat formatter = NumberFormat.get currency(locale);

C. NumberFormat formatter = NumberFormat.getInstance(locale);

D. NumberFormat formatter = NumberFormat.getCurrencyInstance(locale);

Correct Answer: A

Reference: https://zetcode.com/java/numberformat/


Question 3:

Given:

1Z0-908 exam questions q3 free

What is the result?

A. WorkingUnknown

B. Unknown

C. TuesdayUnknown

D. The compilation fails.

E. Tuesday

F. Working

Correct Answer: B


Question 4:

Given:

1Z0-908 exam questions q4 free

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

1Z0-908 exam questions q4-2 free

A. Option A

B. Option B

C. Option C

D. Option D

E. Option E

Correct Answer: AE


Question 5:

Given:

1Z0-908 exam questions q5 free

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

A. 0). one

B. 0). one1). two2). three

C. The compilation fails.

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

E. A java. lang.NullPointerException is thrown.

Correct Answer: D


Question 6:

Given the Customer table structure:

1.ID Number Primary Key

2.NAME Text Nullable Given code fragment:

1Z0-908 exam questions q6 free

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

A. Stmt.setNull(2, java,sql. Types, VARCHAR);

B. Stmt.setNull(2 string, class);

C. Stmt.setNull(2, null);

D. Stmt.setNull(2, java.lang, string);

Correct Answer: A


Question 7:

Given: What is the result?

1Z0-908 exam questions q7 free

A. 3 5 3 3

B. 3 3 3 3

C. 3 5 3 5

D. 5 5 3 3

Correct Answer: A


Question 8:

Why does this compilation fail?

1Z0-908 exam questions q8 free

1Z0-908 exam questions q8-2 free

A. The method Y. print (object) does not call the method super.print (object)

B. The method x. print (object) is not accessible to Y.

C. In method x. print (Collection), system. Out:: prints is an invalid Java identifier.

D. The method print (object) and the method print (object…) are duplicates of each other.

E. The method Y. print (object…) cannot override the final method x.print (object….).

Correct Answer: D


Question 9:

Given the code fragment:

1Z0-908 exam questions q9 free

What is the result?

A. 1

B. The compilation fails at line

C. 10

D. The compilation fails at line 16.

E. The compilation fails at line 13.

Correct Answer: C


Question 10:

Given:

1Z0-908 exam questions q10 free

What is the type of x?

A. char

B. List

C. String

D. List

Correct Answer: C


Question 11:

Given the code fragment:

1Z0-908 exam questions q11 free

What is the result?

A. An ArrayIndexOutofBoundsException is thrown at runtime.

B. The compilation fails.

C. gh ij kl

D. gj hk il

E. ghi jkl

Correct Answer: A


Question 12:

Given: What is the result?

1Z0-908 exam questions q12 free

A. NullPointerException is thrown at line 4.

B. NullPointerException is thrown at line 10.

C. A compilation error occurs.

D. Hello

Correct Answer: D


Question 13:

Given:

1Z0-908 exam questions q13 free

What is the result?

A. watermelonorangelemongrapeapricotapple

B. nothing

C. appleapricotgrapelemonorangewatermelon

D. appleorangegrapelemonapricotwatermelon

Correct Answer: A


Question 14:

Given:

1Z0-908 exam questions q14 free

What is the result?

A. null

B. nothing

C. It fails to compile.

D. java. lang.IllegalAccessException is thrown.

E. Student

Correct Answer: C


Question 15:

Given:

1Z0-908 exam questions q15 free

Which two codes, independently, can be inserted in line to 1 compile?

A. Abacus aba = (int m, int n) -> { m * n };

B. Abacus aba = (int e, int f) -> { return e * f; };

C. Abacus aba = (a, b) -> a * b;

D. Abacus aba = v, w -> x * y;

E. Abacus aba = (int i, j) -> ( return i * j; };

Correct Answer: CE


 

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Using Newest Lead4Pass 1Z0-811 Exam Dumps Complete Oracle 1Z0-811 Exam – 2023.01

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Question 1:

Which statement is true about primitive variables?

A. They can be compared with the == operator.

B. They can be compared with the equals method only.

C. They cannot be compared.

D. They can be compared with the compareTo method only.

Correct Answer: B

Reference: https://stackoverflow.com/questions/9690981/compare-two-primitive-long-variables-in-java


Question 2:

Identify two Java reserved words.

A. array

B. true

C. this

D. exception

E. string

Correct Answer: BC

Reference: https://www.computerhope.com/jargon/j/java_reserved_words.htm


Question 3:

Which statement is true about a Java method?

A. It must be declared with an access modifier.

B. It cannot be defined within another method.

C. It must accept a parameter and return a value.

D. It cannot be defined as static final.

Correct Answer: B

Reference: https://www.quora.com/Can-we-define-a-function-within-another-function-in-Java


Question 4:

Given:

And the code fragment:

Which code fragment can be inserted at line n1 to enable the code to print All the best?

A. void writeMsg();

B. Messenger.writeMsg();

C. writeMsg();

D. m.writeMsg();

Correct Answer: B


Question 5:

Given the code fragment:

Which two code fragments are valid at line 2?

A. for (int count = 0; count < 5; count++) {

System.out.print(count);

}

B. package p1;

C. import java.util.*; public void display() { List nums = new ArrayList (); }

D. { private int num; }

E. private String name = “John”; public void display() { System.out.print(name); }

Correct Answer: BE


Question 6:

You have been asked to develop a Java program that prints the elements of an array in reverse order.

Which looping statement cannot be used to meet the requirement?

A. enhanced for

B. standard for

C. while

D. do-while

Correct Answer: D

Reference: https://www.javatpoint.com/java-program-to-print-the-elements-of-an-array-in-reverse-order


Question 7:

Given the code fragment:

Which statement is true?

A. The code results in a compilation error. To make it compile, insert at line n1: import java.lang.Math; import java.lang.Random;

B. The code compiles successfully

C. The code results in a compilation error. To make it compile, insert at line n1: import java.lang; import java.util;

D. The code results in a compilation error. To make it compile, insert at line n1: import java.util.*;

Correct Answer: B


Question 8:

Given the code fragment:

What is the result?

A. pen pencil erasers paper

B. paper pen pencil erasers

C. A compilation error occurs.

D. A runtime exception is thrown.

Correct Answer: D


Question 9:

Given the code fragment:

Which code fragment, when inserted at line n1, enables the code to print Java Programming:1?

A. System.out.println(name + “:” + count);

B. System.out.println(c.name + “:” + count);

C. System.out.println(c.name + “:” + Course.count);

D. System.out.println(Course.name + “:” + c.count);

Correct Answer: C


Question 10:

Given:

What is the result?

A. [null:-]

B. [ : ]

C. [null:null]

D. [:null]

Correct Answer: A


Question 11:

Which two Java reserved words are used to implement encapsulation?

A. final

B. static

C. public

D. extends

E. private

Correct Answer: CE

Reference: https://learn.saylor.org/mod/page/view.php?id=22044


Question 12:

Given the code fragment:

Which code fragment can be inserted at line n1 to enable the code to print 0.0?

A. Ball b = null;

B. weight = 0.0;

C. Ball.weight = 0.0;

D. Ball b = new Ball(0.0);

E. Ball b = new Ball();

Correct Answer: D


Question 13:

Identify two features of Java.

A. architecture dependent

B. platform independent

C. single threaded

D. robust

Correct Answer: BD

Reference: https://www.javatpoint.com/features-of-java


Question 14:

Given the code fragment:

What is the result?

A. A compilation error occurs.

B. A runtime exception is thrown.

C. Julia Peter

D. Peter Julia

Correct Answer: C


Question 15:

Given the code fragment:

Which code fragment can be inserted at line n1 to enable the code to compile?

A. new int num[];

B. int[] num;

C. int[10] num;

D. int num[10];

Correct Answer: B


 

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Updated Lead4Pass 1Z0-809 Dumps Latest Version With 1Z0-809 Free Exam Questions 2023-01-01

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Lead4Pass has completed the 1Z0-809 dumps 2023 https://www.leads4pass.com/1z0-809.html latest version update, providing you with the latest 207+ exam question and answer questions (PDF or VCE), all of which match the exam content and ensure that you can pass.

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Real questions from 1Z0-809 free dumps. 

Question 1:

Given the definition of the Vehicle class:

Class Vehicle {

int distance; //line n1

Vehicle (int x) {

this distance = x;

}

public void increased(int time) { //line n2

int timeTravel = time; //line n3

class Car {

int value = 0;

public void speed () {

value = distance /time travel;

System.out.println (“Velocity with new speed”+value+”kmph”);

}

}

new Car().speed();

}

}

and this code fragment:

Vehicle v = New Vehicle (100);

A. increased (60); What is the result?

B. Velocity with new speed

C. A compilation error occurs at line n1.

D. A compilation error occurs at line n2.

E. A compilation error occurs at line n3.

Correct Answer: A


Question 2:

Given:

IntStream stream = IntStream.of (1,2,3);

IntFunction inFu= x -> y -> x*y; //line n1

IntStream new stream = stream.map(inFu.apply(10)); //line n2

new stream.forEach(System.output::print);

Which modification enables the code fragment to compile?

A. Replace line n1 with: IntFunction inFu = x -> y -> x*y;

B. Replace line n1 with: IntFunction inFu = x -> y -> x*y;

C. Replace line n1 with: BiFunction inFu = x -> y -> x*y;

D. Replace line n2 with: IntStream new stream = stream.map(inFu.applyAsInt (10));

Correct Answer: B


Question 3:

Given the code fragment:

List values = Arrays.asList (1, 2, 3);

values. stream ()

.map(n -> n*2) //line n1

.peek(System.out::print) //line n2

.count();

What is the result?

A. 246

B. The code produces no output.

C. A compilation error occurs at line n1.

D. A compilation error occurs at line n2.

Correct Answer: A


Question 4:

Given the code fragment:

public class Foo {

public static void main (String [ ] args) {

Map unsortMap = new HashMap ( );

unsortMap.put (10, “z”);

unsortMap.put (5, “b”);

unsortMap.put (1, “d”);

unsortMap.put (7, “e”);

unsortMap.put (50, “j”);

Map treeMap = new TreeMap (new

Comparator ( ) {

@Override public int compare (Integer o1, Integer o2) {return o2.compareTo

(o1); } } );

treeMap.putAll (unsortMap);

for (Map. Entry entry : treeMap.entrySet () ) {

System.out.print (entry.getValue () + ” “);

}

}

}

What is the result?

A. A compilation error occurs.

B. d b e z j

C. j z e b d

D. z b d e j

Correct Answer: C


Question 5:

Given:

public class Counter {

public static void main (String[ ] args) {

int a = 10;

int b = -1;

assert (b >=1) : “Invalid Denominator”;

int = a / b;

System.out.println (c);

}

}

What is the result of running the code with the -ea option?

A. -10

B. 0

C. An assertion error is thrown.

D. A compilation error occurs.

Correct Answer: C


Question 6:

Given:

class Bird {

public void fly () { System. out.print(“Can fly”); }

}

class Penguin extends Bird {

public void fly () { System. out.print(“Cannot fly”); }

}

and the code fragment:

class Birdie {

public static void main (String [ ] args) {

fly( ( ) -> new Bird ( ));

fly (Penguin: : new);

}

/* line n1 */

}

Which code fragment, when inserted at line n1, enables the Birdie class to compile?

A. static void fly (Consumer bird) { bird :: fly (); } {

B. static void fly (Consumer bird) bird.accept( ) fly (); } {

C. static void fly (Supplier bird) bird.get( ) fly (); } {

D. static void fly (Supplier bird) LOST

Correct Answer: C


Question 7:

Given:

1.

abstract class Shape {

2.

Shape ( ) { System.out.println (“Shape”); }

3.

protected void area ( ) { System.out.println (“Shape”); }

4.

}

5.

6.

class Square extends Shape {

7.

int side;

8.

Square int side {

9.

/* insert code here */

10.

this.side = side;

11.

}

12.

public void area ( ) { System.out.println (“Square”); }

13.

}

14.

class Rectangle extends Square {

15.

int len, br;

16.

Rectangle (int x, int y) {

17.

/* insert code here */

18.

Len = x, br = y;

19.

}

20.

void area ( ) { System.out.println (“Rectangle”); }

21.

}

Which two modifications enable the code to compile? (Choose two.)

A. At line 1, remove abstract

B. At line 9, insert super ( );

C. At line 12, remove public

D. At line 17, insert super (x);

E. At line 17, insert super (); super.side = x;

F. At line 20, use public void area ( ) {

Correct Answer: DF


Question 8:

Given:

class Sum extends RecursiveAction { //line n1

static final int THRESHOLD_SIZE = 3;

int stIndex, lstIndex;

int [ ] data;

public Sum (int [ ]data, int start, int end) {

this.data = data;

this index = start;

this. lstIndex = end;

}

protected void compute ( ) {

int sum = 0;

if (lstIndex ?stIndex<;= THRESHOLD_SIZE) {

for (int i = stIndex; i < lstIndex; i++) {

sum += data [i];

}

System.out.println(sum);

} else {

new Sum (data, index + THRESHOLD_SIZE, lstIndex).fork( );

new Sum (data, index,

Math.min (lstIndex, stIndex + THRESHOLD_SIZE)

).compute ();

}

}

}

and the code fragment:

ForkJoinPool fjPool = new ForkJoinPool ( );

int data [ ] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

fool.invoke (new Sum (data, 0, data. length));

and given that the sum of all integers from 1 to 10 is 55.

Which statement is true?

A. The program prints several values that total 55.

B. The program prints 55.

C. A compilation error occurs at line n1.

D. The program prints several values whose sum exceeds 55.

Correct Answer: C


Question 9:

Given the content of Operator.java, EngineOperator.java, and Engine.java files: and the code fragment:

1Z0-809 Free Exam Questions 9

What is the result?

A. The Engine.java file fails to compile.

B. The EngineOperator.java file fails to compile.

C. The Operator.java file fails to compile.

D. ON-OFF

Correct Answer: A


Question 10:

Given the code fragment:

Path file = Paths. get (“courses.txt”); // line n1

Assume the courses.txt is accessible.

Which code fragment can be inserted at line n1 to enable the code to print the content of the courses.txt file?

A. List fc = Files.list(file); fc.stream().forEach (s – > System.out.println(s));

B. Stream fc = Files.readAllLines (file); fc.forEach (s – > System.out.println(s));

C. List fc = readAllLines(file); fc.stream().forEach (s – > System.out.println(s));

D. Stream fc = Files.lines (file); fc.forEach (s – > System.out.println(s));

Correct Answer: D


Question 11:

Given the code fragment:

public void recDelete (String dir name) throws IOException {

File [ ] list of files = new File (dirName) .listFiles();

if (list of files ! = null and list of files.length >0) {

for (File aFile : listOfFiles) {

if (aFile.isDirectory ()) {

recDelete (aFile.get absolute path ());

} else {

if (aFile.getName ().endsWith (“.class”))

aFile.delete ();

}

}

}

}

Assume that Projects contains subdirectories that contain .class files and is passed as an argument to the

recDelete () method when it is invoked.

What is the result?

A. The method deletes all the .class files in the Projects directory and its subdirectories.

B. The method deletes the .class files of the Projects directory only.

C. The method executes and does not make any changes to the Projects directory.

D. The method throws an IOException.

Correct Answer: A


Question 12:

Given the code fragments:

4.

void doStuff() throws ArithmeticException, NumberFormatException, Exception {

5.

if (Math.unexpected() >-1 throw new Exception (“Try again”);

6.

}

and

24.

try {

25.

doStuff ( ):

26.

} catch (ArithmeticException | NumberFormatException | Exception e) {

27.

System.out.println (e.getMessage()); }

28.

catch (Exception e) {

29.

System.out.println (e.getMessage()); }

30.

}

Which modification enables the code to print Try again.

A. Comment lines 28, 29, and 30.

B. Replace line 26 with: } catch (Exception | ArithmeticException | NumberFormatException e) {

C. Replace line 26 with: } catch (ArithmeticException | NumberFormatException e) {

D. Replace line 27 with: throw e;

Correct Answer: C


Question 13:

Given the definition of the Country class:

public class country {

public enum Continent {ASIA, EUROPE}

String name;

Continent region;

public Country (String na, Continent reg) {

name = na, region = reg;

}

public String getName () {return name;}

public Continent getRegion () {return region;}

}

and the code fragment:

List consist = Arrays.asList (

new Country (“Japan”, Country.Continent.ASIA),

new Country (“Italy”, Country.Continent.EUROPE),

new Country (“Germany”, Country.Continent.EUROPE));

Map<Country.Continent, List> regionNames = couList.stream ()

.collect(Collectors.grouping (Country ::getRegion,

Collectors.mapping(Country::getName, Collectors.toList()))));

System.out.println(region names);

A. {EUROPE = [Italy, Germany], ASIA = [Japan]}

B. {ASIA = [Japan], EUROPE = [Italy, Germany]}

C. {EUROPE = [Germany, Italy], ASIA = [Japan]}

D. {EUROPE = [Germany], EUROPE = [Italy], ASIA = [Japan]}

Correct Answer: B


Question 14:

Given the code fragment:

Map books = new TreeMap();

books. put (1007, “A”);

books. put (1002, “C”);

books. put (1001, “B”);

books. put (1003, “B”);

System.out.println (books);

What is the result?

A. {1007 = A, 1002 = C, 1001 = B, 1003 = B}

B. {1001 = B, 1002 = C, 1003 = B, 1007 = A}

C. {1002 = C, 1003 = B, 1007 = A}

D. {1007 = A, 1001 = B, 1003 = B, 1002 = C}

Correct Answer: B

Reference: TreeMap inherits SortedMap and automatically sorts the element\’s key


Question 15:

Given:

class Book {

int id;

String name;

public Book (int id, String name) {

this.id = id;

this.name = name;

}

public boolean equals (Object obj) { //line n1

boolean output = false;

Book b = (Book) obj;

if (this.name.equals(b name))}

output = true;

}

return output;

}

}

and the code fragment:

Book b1 = new Book (101, “Java Programming”);

Book b2 = new Book (102, “Java Programming”);

System.out.println (b1.equals(b2)); //line n2

Which statement is true?

A. The program prints true.

B. The program prints false.

C. A compilation error occurs. To ensure successful compilation, replace line n1 with: boolean equals (Book obj) {

D. A compilation error occurs. To ensure successful compilation, replace line n2 with: System.out.println (b1.equals((Object) b2));

Correct Answer: A


 

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Updated Lead4Pass 1Z0-900 Dumps Latest Version With 1Z0-900 Free Exam Questions 2022-04

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Free 1Z0-900 questions are from the latest real 1Z0-900 dumps

Question 1:

You need to develop a chat application, which allows the display of emoticons and images together with text messages.

How should you configure WebSocket endpoints to receive both text and binary messages?

A. Create two @onMessage methods in the same endpoint with appropriate parameter types.

B. Define the @onMessage methods in your endpoint with Object as a parameter and check the actual type in your code.

C. You can achieve this only by creating separate WebSocket endpoints for each message type.

D. Create two @onMessage methods, each with an appropriate decoder attribute in the same endpoint.

Correct Answer: D

Reference: https://abhirockzz.gitbooks.io/java-websocket-api-handbook/content/Receiving% 20Messages.html


Question 2:

Which two capabilities are provided by the Java Authentication and Authorization Services (JAAS) API? (Choose two.)

A. protecting data from unauthorized viewing by using encryption

B. verifying that a user is allowed to perform an action

C. ensuring that data is not modified in transit

D. verifying identity claims from users

Correct Answer: BC

Reference: https://docs.oracle.com/javase/8/docs/technotes/guides/security/jaas/JAASRefGuide.html


Question 3:

Which interface should you implement if you want to be alerted to the lifecycle events surrounding your task being executed by a ManagedExecutorService?

A. the Runnable Interface

B. the ManagedExecutorTask interface

C. the TaskEventListener interface

D. the ManagedTaskListener interface

Correct Answer: D

Reference: https://github.com/javaee/concurrency-ee-spec/blob/master/api/src/main/java/javax/enterprise/ concurrent/ManagedExecutorService.java


Question 4:

Given the code fragment: Which URL triggers the invocation of the getEmployee () method?

latest 1Z0-900 questions 4

A. /Employees/89724

B. /Employees/J6349

C. /Employees/id:a7280

D. /Employees/id/J6349

Correct Answer: B


Question 5:

What is true about Message-Driven Beans (MDBs)?

A. MDBs can participate in transactions.

B. MDBs are invoked synchronously.

C. Each MDBs can process messages only from a single client.

D. MDBs retain data caches between client calls.

Correct Answer: A

Reference: https://docs.oracle.com/javaee/7/tutorial/ejb-intro003.htm


Question 6:

Given the code fragment: Which code can be added to register both of these methods to receive BankEvent notifications only if an instance of BankActivityService is already instantiated in the current context?

latest 1Z0-900 questions 6

A. @Observes(notifyObserver=IF_EXISTS) on line 3 and line 6

B. @Observes(during=IN_PROGRESS) on line 1

C. @Observes(during=AFTER_COMPLETION) on line 1

D. @Observes(notifyObserver=IF_EXISTS) on line 4 and line 7 before method parameter declaration

Correct Answer: A

Reference https://docs.oracle.com/javaee/7/tutorial/cdi-adv005.htm


Question 7:

Which code snippet prints the exception error message as part of the page output?

A.

B.

C.

D.

Correct Answer: D

Reference: https://www.geeksforgeeks.org/3-different-ways-print-exception-messages-java/


Question 8:

Java EE\’s support for WS-Security includes handling which two types of security credentials? (Choose two.)

A. X.509 certificates

B. SAML tokens

C. OAuth Bearer tokens

D. Two-factor authentication tokens

Correct Answer: AB


Question 9:

Given the code fragment from a Facelet page: On Line 1, you are asked to insert a search box that displays the text “Search Here” via a placeholder. Assume searchMB is a valid Managed Bean.

latest 1Z0-900 questions 9

Which two options enable you to create a search box with a placeholder attribute on Line 1? (Choose two.)

A.

B.

C.

D.

E.

Correct Answer: CE


Question 10:

Given the code fragment:

latest 1Z0-900 questions  10

Which method should be used on line 3 to enable the default validation mechanism?

A. u.setProperty(String, Object)

B. u.setProperty(Schema)

C. u.setEventHandler(ValidationEventHandler)

D. u.setAdapter(XmlAdapter)

Correct Answer: D

Reference: https://docs.oracle.com/javaee/6/api/javax/xml/bind/Unmarshaller.html


Question 11:

How do you specify a default error page in your web.xml file?

A. /general-error.html

B. * /general-error.html

C. * /general-error.html

D. /general-error.html

Correct Answer: B

Reference: http://www.codejava.net/java-ee/servlet/how-to-handle-error-in-web-xml-for-java-webapplications


Question 12:

Given the code fragment:

latest 1Z0-900 questions  12

And

Which two steps, when performed independently, enable the index?xhtml page to print the following text: The Id is 12345. (Choose two.)

A. Replace line 2 with: @Inject public void setAcc(Account acc)

B. Replace line 3 with @Inject public Account getAcc()

C. Replace line 1 with: @Inject private Account acc;

D. Replace line 3 with: public @Inject Account getAcc()

E. Replace line 1 with: private @Inject Account acc;

F. Replace line 2 with: public void setAcc(@Inject Account acc)

Correct Answer: DF


Question 13:

Given:

How often does the submitted task run?

A. need more details to determine

B. once

C. as many times as you like

D. based on a schedule

Correct Answer: A


Question 14:

Given:

latest 1Z0-900 questions  14

What code needs to be added to line 1 for MyMapper bean instances to be correctly passivated?

A. @Stateless @PassivationCapable

B. @Stateless

C. @Stateful @PassivationCapable

D. @Stateful

Correct Answer: D

Reference: https://docs.oracle.com/javaee/6/tutorial/doc/giplj.html#gipln


Question 15:

Given:

latest 1Z0-900 questions  15

If an exception is thrown inside the if block, what effect will it have on the transaction?

A. The transaction will be committed.

B. The transaction will be suspended.

C. The transaction will be rolled back.

Correct Answer: C


 

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Updated Lead4Pass 1Z0-808 Dumps Latest Version With 1Z0-808 Free Exam Questions 2021

Updated Oracle 1Z0-808 Dumps

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Lead4Pass has completed the 1Z0-808 dumps https://www.leads4pass.com/1z0-808.html latest version update, providing you with the latest 384+ exam question and answer questions (PDF or VCE), all of which match the exam content and ensure that you can pass.

Not only that but Lead4Pass shares the latest 1Z0-808 free exam questions with you to study.

Free Share 1Z0-808 Dumps Latest Questions And Answers

Question 1:

Given the code fragment:

 1Z0-808 Free Exam Questions 1

What is the result?

A. 10: 10

B. 5: 5

C. 5: 10

D. Compilation fails

Correct Answer: A


Question 2:

Given:

 1Z0-808 Free Exam Questions 2

What is the result?

A. box B. no

C. bo

D. nb

E. An exception is thrown at runtime

Correct Answer: E


Question 3:

Which three are the advantages of the Java exception mechanism?

A. Improves the program structure because the error handling code is separated from the normal program function

B. Provides a set of standard exceptions that covers all the possible errors

C. Improves the program structure because the programmer can choose where to handle exceptions

D. Improves the program structure because exceptions must be handled in the method in which they occurred

E. Allows the creation of new exceptions that are tailored to the particular program being created

Correct Answer: ACE


Question 4:

Given the code fragment:

 1Z0-808 Free Exam Questions 4

What is the result?

A. Jesse 25 Walter 52

B. Compilation fails only at line n1

C. Compilation fails only at line n2

D. Compilation fails at both line n1 and line n2

Correct Answer: D


Question 5:

Given:

class Mid {

public int finding(int n1, int n2) {

return (n1 + n2) / 2;

}

}

public class Calc extends Mid {

public static void main(String[] args) {

int n1 = 22, n2 = 2;

// insert code here

System.out.print(n3);

}

}

Which two code fragments, when inserted at // insert code here, enable the code to compile and print 12?

A. Calc c = new Calc(); int n3 = c.findMid(n1,n2);

B. int n3 = super.findMid(n1,n3);

C. Calc c = new Mid(); int n3 = c.findMid(n1, n2);

D. Mid m1 = new Calc(); int n3 = m1.findMid(n1, n2);

E. int n3 = Calc.findMid(n1, n2);

Correct Answer: AD

Incorrect: Not B: circular definition of n3. Not C: Compilation error. line Calc c = new Mid(); required: Calc found: Mid Not E: Compilation error. line int n3 = Calc.findMid(n1, n2); non-static method findMid(int,int) cannot be referenced from a static context


Question 6:

Given the code fragment:

 1Z0-808 Free Exam Questions 6

Assume that the system date is June 20, 2014. What is the result?

 1Z0-808 Free Exam Questions 6-2

A. Option A

B. Option B

C. Option C

D. Option D

Correct Answer: A


Question 7:

Given the code fragment:

 1Z0-808 Free Exam Questions 7

What is the result?

A. 20

B. 25

C. 29

D. Compilation fails

E. AnArrayIndexOutOfBoundsException is thrown at runtime

Correct Answer: A


Question 8:

Given the code fragment:

 1Z0-808 Free Exam Questions 8

What is the result?

A. May 04, 2014T00:00:00.000

B. 2014-05-04T00:00: 00. 000

C. 5/4/14T00:00:00.000

D. An exception is thrown at runtime.

Correct Answer: D

java.time.temporal.UnsupportedTemporalTypeException: Unsupported field: HourOfDay


Question 9:

Given the code fragment:

 1Z0-808 Free Exam Questions 9

And given the requirements:

If the value of the qty variable is greater than or equal to 90, discount = 0.5 If the value of the qty variable is between 80 and 90, discount = 0.2 Which two code fragments can be independently placed at line n1 to meet the requirements?

 1Z0-808 Free Exam Questions 9-2

A. Option A

B. Option B

C. Option C

D. Option D

E. Option E

Correct Answer: AC


Question 10:

Given:

 1Z0-808 Free Exam Questions 10

The class is poorly encapsulated. You need to change the circle class to compute and return the area instead.

Which two modifications are necessary to ensure that the class is properly encapsulated?

A. Remove the area field.

B. Change the getArea( ) method as follows: public double getArea ( ) { return Match.PI * radius * radius; }

C. Add the following method: public double getArea ( ) {area = Match.PI * radius * radius; }

D. Change the access modifier of the SerRadius ( ) method to be protected.

Correct Answer: BD


Question 11:

Given the code fragment:

 1Z0-808 Free Exam Questions 11

What is the result?

A. 10 8 6 4 2 0

B. 10 8 6 4 2

C. AnArithmeticException is thrown at runtime

D. The program goes into an infinite loop outputting: 10 8 6 4 2 0. . .

E. Compilation fails

Correct Answer: B


Question 12:

Given:

 1Z0-808 Free Exam Questions 12

Which code fragment should you use at line n1 to instantiate the dvd object successfully?

A. Option A

B. Option B

C. Option C

D. Option D

Correct Answer: C


Question 13:

Given the for loop construct:

for ( expr1 ; expr2 ; expr3 ) {

statement;

}

Which two statements are true?

A. This is not the only valid for loop construct; there exists another form of for loop constructor.

B. The expression expr1 is optional. it initializes the loop and is evaluated once, as the loop begins.

C. When expr2 evaluates to false, the loop terminates. It is evaluated only after each iteration through the loop.

D. The expression expr3 must be present. It is evaluated after each iteration through the loop.

Correct Answer: BC

The statement has these forms:

for (init-state; condition; next-stmt) {

body

}

There are three clauses in the for statement.

The init-stmt statement is done before the loop is started, usually to initialize an iteration variable.

The condition expression is tested each time the loop is done. The loop isn’t executed if the boolean

expression is false (the same as the while loop). The next-stmt statement is done after the body is

executed. It typically increments an iteration variable.


Question 14:

Which three statements are true about the structure of a Java class?

A. A class can have only one private constructor.

B. A method can have the same name as a field.

C. A class can have overloaded static methods.

D. A public class must have a main method.

E. The methods are mandatory components of a class.

F. The fields need not be initialized before use.

Correct Answer: BDE

Explanation:

A: Private constructors prevent a class from being explicitly instantiated by its callers.

If the programmer does not provide a constructor for a class, then the system will always provide a default,

public no-argument constructor. To disable this default constructor, simply add a private no-argument

constructor to the class. This private constructor may be empty.

B: The following works fine:

int cake() {

int cake=0;

return (1);

}

C: We can overload static methods in Java. In terms of method overloading static methods are just like

normal methods and in order to overload the static method you need to provide another static method with

same name but a different method signature.

Incorrect:

Not D: Only a public class in an application need to have a main method.

Not E:

Example:

class A

{

public string something;

public int a;

}

Q: What do you call classes without methods? Most of the time: An anti-pattern.

Why? Because it facilitates procedural programming with “Operator” classes and data structures. You separate data and behavior which isn’t exactly good OOP.

Often times: A DTO (Data Transfer Object)

Read-only data structures meant to exchange data, derived from a business/domain object.

Sometimes: Just data structure.

Well sometimes, you just gotta have those structures to hold data that is just plain and simple and has no

operations on it.

Not F: Fields need to be initialized. If not the code will not compile.

Example:

Uncompilable source code – variable x might not have been initialized


Question 15:

View the exhibit.

 1Z0-808 Free Exam Questions 15

Given the code fragment:

 1Z0-808 Free Exam Questions 15-2

Which change enables the code to print the following?

James age: 20 Williams age: 32

A. Replacing line 5 with public static void main (String [] args) throws MissingInfoException, AgeOutofRangeException {

B. Replacing line 5 with public static void main (String [] args) throws. Exception {

C. Enclosing line 6 and line 7 within a try block and adding: catch(Exception e1) { //code goes here} catch (missingInfoException e2) { //code goes here} catch (AgeOutofRangeException e3) {//code goes here}

D. Enclosing line 6 and line 7 within a try block and adding: catch (missingInfoException e2) { //code goes here} catch (AgeOutofRangeException e3) {//code goes here}

Correct Answer: C


 

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