[Nov 18, 2021] Powerful 1z0-809 PDF Dumps for 1z0-809 Questions
Authentic 1z0-809 Dumps - Free PDF Questions to Pass
How to book the 1Z0-809 Exam
These are following steps for registering the Oracle 1Z0-809 exam. Step 1: Visit to Pearson Exam Registration Step 2: Signup/Login to Pearson VUE account Step 3: Search for Oracle 1Z0-809 Exam Certifications Exam Step 4: Select Date, time and confirm with the payment method
How to study the 1Z0-809 Exam
There are two main types of resources for preparation of certification exams first there are the study guides and the books that are detailed and suitable for building knowledge from ground up then there are video tutorial and lectures that can somehow ease the pain of through study and are comparatively less boring for some candidates yet these demand time and concentration from the learner. Smart Candidates who want to build a solid foundation in all exam topics and related technologies usually combine video lectures with study guides to reap the benefits of both but there is one crucial preparation tool as often overlooked by most candidates the practice exams. Practice exams are built to make students comfortable with the real exam environment. Statistics have shown that most students fail not due to that preparation but due to exam anxiety the fear of the unknown. DumpsValid expert team recommends you to prepare some notes on these topics along with it don’t forget to practice Oracle 1Z0-809 dumps which have been written by our expert team, Both these will help you a lot to clear this exam with good marks.
Preparation Resources
Now that you have made your decision and know the date of the final test, you can make a plan for your thorough training. Keep in mind that the field of Java is constantly evolving, so choose only relevant and credible sources for preparation. We can find many options on the Internet: training courses, sets of questions, and study guides such as.
- ‘OCP: Oracle Certified Professional Java SE 8 Programmer II Study Guide: Exam 1Z0-809 1st Edition, Kindle Edition by Jeanne Boyarsky and Scott Selikoff. The study guide, developed by expert Java developers, aims to strengthen candidates' existing knowledge as well as to develop new skills needed to obtain the OCP Java SE 8 Programmer certification. As a result, you will gain a solid understanding of abstract classes, interfaces, and class design, learn object-oriented design principles and patterns, and deepen into functional programming. And thanks to the practical work with expert-led database practice you will master input-output, NIO, and JDBC, which will help you not only to pass the Oracle 1Z0-809 exam perfectly but also to sharpen the skills necessary for a Java developer in solving everyday tasks. So when you order this guide from Amazon in Kindle or Paperback version, you get not only the prep material but also the insight, explanations, and perspectives that come from years of experience
- ‘OCP Java SE 8 Programmer II Exam Guide (Exam 1Z0-809) 7th Edition’ by Kathy Sierra, Bert Bates, and Elisabeth Robson. Developed by a team of experts, including two Java SE 8 Programmer II exam developers, the study guide fully follows the objectives of the official test and assists candidates greatly in through preparation for this Oracle exam. The book's content is designed to provide comprehensive coverage of each topic such as object orientation, streams, threads, and concurrency, as well as providing you with the fundamentals of programming in the Java language. So, both the Kindle and the print version are available on Amazon making it easy for any candidate to obtain the OCP Java SE 8 Programmer certification.
- ‘Oracle Certified Professional Java SE 8 Programmer Exam 1Z0-809: A Comprehensive OCPJP 8 Certification Guide 2nd Edition’ by SG Ganesh, Hari Kiran Kumar, Tushar Sharma. A group of expert authors has developed a training guide consisting of 14 chapters to prepare candidates for all 1Z0-809 exam topics and develop all the skills necessary for a professional Java SE 8 developer. The book begins with answers to the most frequently asked questions about the OCP Java SE 8 Programmer certification process, and at the end of the training you will be offered a practice exam for your self-check. What's more, for a more comprehensive approach, you'll get real-life examples, practice questions, exam notes and tips. Anyone can order this book in the Kindle version or print format on Amazon, and then get the key to passing the Oracle 1Z0-809 exam brilliantly.
In other words, there are a huge number of training resources available to you to help you write your final test with flying colors, become an Oracle Certified Professional Java SE 8 Programmer, and take the next step in your IT career.
NEW QUESTION 64
Given the definition of the Vehicle class:
Class Vehhicle {
int distance; //line n1
Vehicle (int x) {
this distance = x;
}
public void increSpeed(int time) { //line n2
int timeTravel = time; //line n3
class Car {
int value = 0;
public void speed () {
value = distance /timeTravel;
System.out.println ("Velocity with new speed"+value+"kmph");
}
}
new Car().speed();
}
}
and this code fragment:
Vehicle v = new Vehicle (100);
v.increSpeed(60);
What is the result?
- A. A compilation error occurs at line n2.
- B. Velocity with new speed
- C. A compilation error occurs at line n1.
- D. A compilation error occurs at line n3.
Answer: B
NEW QUESTION 65
Given:
What is the result?
- A. An ArrayIndexOutOfBoundsException is thrown at runtime.
- B. A NullPointerException is thrown at runtime.
- C. null
Richard
Donald - D. Compilation fails.
- E. Richard
Donald
Answer: B
NEW QUESTION 66
Which two statements are true about synchronization and locks? (Choose two.)
- A. The intrinsic lock will be retained by a thread if return from a synchronized method is caused by an uncaught exception.
- B. A thread automatically acquires the intrinsic lock on a synchronized method's object when entering that method.
- C. Threads cannot acquire intrinsic locks on classes.
- D. A thread automatically acquires the intrinsic lock on a synchronized statement when executed.
- E. A thread exclusively owns the intrinsic lock of an object between the time it acquires the lock and the time it releases it.
Answer: A,D
NEW QUESTION 67
Given:
class Student {
String course, name, city;
public Student (String name, String course, String city) {
this.course = course; this.name = name; this.city = city;
}
public String toString() {
return course + ":" + name + ":" + city;
}
and the code fragment:
List<Student> stds = Arrays.asList(
new Student ("Jessy", "Java ME", "Chicago"),
new Student ("Helen", "Java EE", "Houston"),
new Student ("Mark", "Java ME", "Chicago"));
stds.stream()
. collect(Collectors.groupingBy(Student::getCourse))
. forEach(src, res) -> System.out.println(scr));
What is the result?
- A. [Java ME: Jessy:Chicago, Java ME: Mark:Chicago]
[Java EE: Helen:Houston] - B. [Java EE: Helen:Houston]
[Java ME: Jessy:Chicago, Java ME: Mark:Chicago] - C. Java EE
Java ME - D. A compilation error occurs.
Answer: A
NEW QUESTION 68
Given:
class ImageScanner implements AutoCloseable {
public void close () throws Exception {
System.out.print ("Scanner closed.");
}
public void scanImage () throws Exception {
System.out.print ("Scan.");
throw new Exception("Unable to scan.");
}
}
class ImagePrinter implements AutoCloseable {
public void close () throws Exception {
System.out.print ("Printer closed.");
}
public void printImage () {System.out.print("Print."); }
}
and this code fragment:
try (ImageScanner ir = new ImageScanner();
ImagePrinter iw = new ImagePrinter()) {
ir.scanImage();
iw.printImage();
} catch (Exception e) {
System.out.print(e.getMessage());
}
What is the result?
- A. Scan.Scanner closed. Unable to scan.
- B. Scan. Unable to scan. Printer closed.
- C. Scan.Printer closed. Scanner closed. Unable to scan.
- D. Scan. Unable to scan.
Answer: A
NEW QUESTION 69
Given the code fragment:
List<String> nL = Arrays.asList("Jim", "John", "Jeff");
Function<String, String> funVal = s -> "Hello : ".concat(s);
nL.Stream()
.map(funVal)
.forEach(s-> System.out.print (s));
What is the result?
- A. Hello : Jim Hello : John Hello : Jeff
- B. Jim John Jeff
- C. The program prints nothing.
- D. A compilation error occurs.
Answer: C
Explanation:
Explanation
The program prints nothing because the method is concat.
NEW QUESTION 70
In 2015, daylight saving time in New York, USA, begins on March 8th at 2:00 AM. As a result, 2:00 AM
becomes 3:00 AM.
Given the code fragment:
Which is the result?
- A. 4:00 - difference: 2
- B. 2:00 - difference: 1
- C. 3:00 - difference: 2
- D. 4:00 - difference: 3
Answer: A
NEW QUESTION 71
Given:
What is the result?
- A. Compilation fails at line n2.
- B. Area is 6.0
- C. Area is 3.0
- D. Compilation fails at line n1.
Answer: A
NEW QUESTION 72
Given the code fragment:
What is the result?
- A. Val:20 Val:40 Val:60
- B. Val:10 Val:20 Val:30
- C. Val: Val: Val:
- D. A compilation error occurs.
Answer: B
NEW QUESTION 73
Given the code fragment:
List<Integer> nums = Arrays.asList (10, 20, 8):
System.out.println (
//line n1
);
Which code fragment must be inserted at line n1to enable the code to print the maximum number in the numslist?
- A. nums.stream().max(Comparator.comparing(a -> a)).get()
- B. nums.stream().map(a -> a).max()
- C. nums.stream().max(Integer : : max).get()
- D. nums.stream().max()
Answer: D
NEW QUESTION 74
Given the code fragment:
Which two modifications, when made independently, enable the code to print Joe:true:100.0?
- A. Option A
- B. Option E
- C. Option B
- D. Option C
- E. Option D
Answer: A,D
NEW QUESTION 75
Given:
class Worker extends Thread {
CyclicBarrier cb;
public Worker(CyclicBarrier cb) { this.cb = cb; }
public void run () {
try {
cb.await();
System.out.println("Worker...");
} catch (Exception ex) { }
}
}
class Master implements Runnable { //line n1
public void run () {
System.out.println("Master...");
}
}
and the code fragment:
Master master = new Master();
//line n2
Worker worker = new Worker(cb);
worker.start();
You have been asked to ensure that the run methods of both the Worker and Master classes are executed.
Which modification meets the requirement?
- A. At line n2, insert CyclicBarrier cb = new CyclicBarrier(1, master);
- B. Replace line n1 with class Master extends Thread {
- C. At line n2, insert CyclicBarrier cb = new CyclicBarrier(2, master);
- D. At line n2, insert CyclicBarrier cb = new CyclicBarrier(master);
Answer: B
NEW QUESTION 76
Given:
class UserException extends Exception { }
class AgeOutOfLimitException extends UserException { }
and the code fragment:
class App {
public void doRegister(String name, int age)
throws UserException, AgeOutOfLimitException {
if (name.length () < 6) {
throw new UserException ();
} else if (age >= 60) {
throw new AgeOutOfLimitException ();
} else {
System.out.println("User is registered.");
}
}
public static void main(String[ ] args) throws UserException {
App t = new App ();
t.doRegister("Mathew", 60);
}
}
What is the result?
- A. An AgeOutOfLimitExceptionis thrown.
- B. User is registered.
- C. A compilation error occurs in the mainmethod.
- D. A UserExceptionis thrown.
Answer: B
Explanation:
Explanation/Reference:
NEW QUESTION 77
Given:
public enum USCurrency {
PENNY (1),
NICKLE(5),
DIME (10),
QUARTER(25);
private int value;
public USCurrency(int value) {
this.value = value;
}
public int getValue() {return value;}
}
public class Coin {
public static void main (String[] args) {
USCurrency usCoin =new USCurrency.DIME;
System.out.println(usCoin.getValue()):
}
}
Which two modifications enable the given code to compile? (Choose two.)
- A. Make the getter method of value as a static method.
- B. Nest the USCurrency enumeration declaration within the Coin class.
- C. Make the USCurrency enumeration constructor private.
- D. Remove the new keyword from the instantion of usCoin.
- E. Add the final keyword in the declaration of value.
Answer: C,D
NEW QUESTION 78
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 */
1 0. this.side = side;
1 1. }
1 2. public void area ( ) { System.out.println ("Square"); }
1 3. }
1 4. class Rectangle extends Square {
1 5. int len, br;
1 6. Rectangle (int x, int y) {
1 7. /* insert code here */
1 8. len = x, br = y;
1 9. }
2 0. void area ( ) { System.out.println ("Rectangle"); }
2 1. }
Which two modifications enable the code to compile?
- A. At line 9, insert super ( );
- B. At line 1, remove abstract
- C. At line 17, insert super (); super.side = x;
- D. At line 12, remove public
- E. At line 17, insert super (x);
- F. At line 20, use public void area ( ) {
Answer: D,E
NEW QUESTION 79
Given:
public class Test<T> {
private T t;
public T get () {
return t;
}
public void set (T t) {
this.t = t;
}
public static void main (String args [ ] ) {
Test<String> type = new Test<>();
Test type 1 = new Test ();//line n1
type.set("Java");
type1.set(100);//line n2
System.out.print(type.get() + " " + type1.get());
}
}
What is the result?
- A. A compilation error occurs. To rectify it, replace line n1 with:
Test<Integer> type1 = new Test<>(); - B. java.lang.string@<hashcode>java.lang.Integer@<hashcode>
- C. A compilation error occurs. To rectify it, replace line n2 with:
type1.set (Integer(100)); - D. Java 100
Answer: D
NEW QUESTION 80
The data.doc, data.txt and data.xml files are accessible and contain text.
Given the code fragment:
Stream<Path> paths = Stream.of (Paths. get("data.doc"),
Paths. get("data.txt"),
Paths. get("data.xml"));
paths.filter(s-> s.toString().endWith("txt")).forEach(
s -> {
try {
Files.readAllLines(s)
.stream()
.forEach(System.out::println); //line n1
} catch (IOException e) {
System.out.println("Exception");
}
}
);
What is the result?
- A. The program prints:
Exception
<<The content of the data.txt file>>
Exception - B. The program prints the content of data.txt file.
- C. A compilation error occurs at line n1.
- D. The program prints the content of the three files.
Answer: B
NEW QUESTION 81
Given the code fragment:
Which modification enables the code to print Price 5 New Price 4?
- A. Replace line n2 with .map (n -> System.out.println ("New Price" + n -1)) and remove line n3
- B. Replace line n2 with .mapToInt (n -> n - 1);
- C. Replace line n3 with .forEach (n -> System.out.println ("New Price" + n));
- D. Replace line n1 with .forEach (e -> System.out.print ("Price" + e))
Answer: C
NEW QUESTION 82
Given:
class Vehicle {
int vno;
String name;
public Vehicle (int vno, String name) {
this.vno = vno,;
this.name = name;
}
public String toString () {
return vno + ":" + name;
}
}
and this code fragment:
Set<Vehicle> vehicles = new TreeSet <> ();
vehicles.add(new Vehicle (10123, "Ford"));
vehicles.add(new Vehicle (10124, "BMW"));
System.out.println(vehicles);
What is the result?
- A. A ClassCastExceptionis thrown at run time.
- B. 10124 BMW
1 0123 Ford - C. 10123 Ford
10124 BMW - D. A compilation error occurs.
Answer: B
NEW QUESTION 83
Given the code fragment:
Which statement is true?
- A. After line 11, none of the objects are eligible for garbage collection.
- B. After line 11, two object are eligible for garbage collection.
- C. After line 11, one object is eligible for garbage collection.
- D. After line 11, three objects are eligible for garbage collection.
Answer: C
NEW QUESTION 84
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?
- A. At line 20, use public void area ( ) {
- B. At line 12, remove public
- C. At line 9, insert super ( );
- D. At line 1, remove abstract
- E. At line 17, insert super (); super.side = x;
- F. At line 17, insert super (x);
Answer: A,F
NEW QUESTION 85
Given:
public class Foo<K, V> {
private K key;
private V value;
public Foo (K key, V value) (this.key = key; this value = value;)
public static <T> Foo<T, T> twice (T value) (return new Foo<T, T> (value, value); )
public K getKey () (return key;)
public V getValue () (return value;)
}
Which option fails?
- A. Foo<String, Integer> mark = new Foo<String, Integer> ("Steve", 100););
- B. Foo<String, String> grade = new Foo <> ("John", "A");
- C. Foo<String, String> pair = Foo.<String>twice ("Hello World!");
- D. Foo<?, ?> percentage = new Foo <> (97, 32););
Answer: D
NEW QUESTION 86
......
Guaranteed Accomplishment with Newest Nov-2021 FREE : https://www.dumpsvalid.com/1z0-809-still-valid-exam.html
Use Valid New Free 1z0-809 Exam Dumps & Answers: https://drive.google.com/open?id=18yapf1rCtudUPapqTVKmWktEIBw5j7e0