Pass Exam With Full Sureness - 1z0-809 Dumps with 195 Questions [Q86-Q103]

Pass Exam With Full Sureness - 1z0-809 Dumps with 195 Questions

Verified 1z0-809 dumps Q&As - 100% Pass from PrepPDF

The Oracle 1Z0-809 exam is intended for those individuals who want to get the Oracle Certified Professional, Java SE 8 Programmer certification. The potential candidates for this test are those IT specialists who have some years of experience with Java SE 8 platform and hold the Oracle Certified Associate, Java SE 8 Programmer credential.

The Oracle 1Z0-809 is a 150-minute test with 85 questions, that are mainly of a multiple-choice format, but there may also be other types, such as drag and drop, simulations, or scenario-based. This certification exam is available in the English language and the passing score for it is 65%. However, you need to try to get more than that.

The benefit in Obtaining the 1Z0-809 Exam Certification

Oracle Certified Java Programmer Certification provides practical experience to candidates from all the aspects to be a proficient worker in the organization.
Oracle Certified Java Programmer is distinguished among competitors. Oracle Certified Java Programmer certification can give them an edge at that time easily when candidates appear for a job interview employers seek to notify something which differentiates the individual to another.
Oracle Certified Java Programmer Certifications provide opportunities to get a job easily in which they are interested in instead of wasting years and ending without getting any experience.

NEW QUESTION 86
public class StringReplace {
public static void main(String[] args) {
String message = "Hi everyone!";
System.out.println("message = " + message.replace("e", "X")); }
}
What is the result?

A. message = Hi XvXryonX!
B. A compile time error is produced.
C. A runtime error is produced.
D. message = Hi everyone!
E. message = Hi Xveryone!
F. message =

Answer: A

NEW QUESTION 87
Given the code fragments:
4. void doStuff() throws ArithmeticException, NumberFormatException, Exception {
5. if (Math.random() >-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. Replace line 27 with:
throw e;
B. Replace line 26 with:
} catch (Exception | ArithmeticException | NumberFormatException e) {
C. Replace line 26 with:
} catch (ArithmeticException | NumberFormatException e) {
D. Comment the lines 28, 29 and 30.

Answer: C

NEW QUESTION 88
Given:

Which two classes use the shape class correctly?

A. Option B
B. Option A
C. Option E
D. Option C
E. Option D
F. Option F

Answer: A,C

Explanation:
When an abstract class is subclassed, the subclass usually provides implementations for all of the abstract methods in its parent class (E). However, if it does not, then the subclass must also be declared abstract (B). Note: An abstract class is a class that is declared abstract--it may or may not include abstract methods. Abstract classes cannot be instantiated, but they can be subclassed.

NEW QUESTION 89
Given:

What is the result?

A. int main 1
B. An exception is thrown at runtime.
C. Object main 1
D. String main 1
E. Compilation fails.

Answer: D

NEW QUESTION 90
Given:
Class A { }
Class B { }
Interface X { }
Interface Y { }
Which two definitions of class C are valid?

A. Class C extends A implements X { }
B. Class C extends B implements X, Y { }
C. Class C implements X, Y extends B { }
D. Class C implements Y extends B { }
E. Class C extends A, B { }

Answer: A,B

NEW QUESTION 91
Given the code fragment:

What is the result?

A. A B D C
B. A B D
C. A B C D
D. A C D
E. A B C C

Answer: E

NEW QUESTION 92
Given the code fragment:
Map<Integer, String> books = new TreeMap<>();
books.put (1007, "A");
books.put (1002, "C");
books.put (1003, "B");
books.put (1003, "B");
System.out.println (books);
What is the result?

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

Answer: B

NEW QUESTION 93
Given the code fragment:
Stream<List<String>> iStr= Stream.of (
Arrays.asList ("1", "John"),
Arrays.asList ("2", null)0;
Stream<<String> nInSt = iStr.flatMapToInt ((x) -> x.stream ());
nInSt.forEach (System.out :: print);
What is the result?

A. 0
B. A NullPointerException is thrown at run time.
C. A compilation error occurs.
D. 1John2null

Answer: C

NEW QUESTION 94
Given:

What is the result?

A. Compilation fails
B. Green 4
C. Red 0
Orange 0
Green 3
D. Red 0
Orange 0
Green 6
E. Red 0
Orange 1

Answer: A

NEW QUESTION 95
Given:
IntStream stream = IntStream.of (1,2,3); IntFunction<Integer> inFu= x -> y -> x*y;//line n1 IntStream newStream = stream.map(inFu.apply(10));//line n2
newStream.forEach(System.output::print);
Which modification enables the code fragment to compile?

A. Replace line n1 with:
IntFunction<IntUnaryOperator> inFu = x -> y -> x*y;
B. Replace line n1 with:
IntFunction<UnaryOperator> inFu = x -> y -> x*y;
C. Replace line n2 with:
IntStream newStream = stream.map(inFu.applyAsInt (10));
D. Replace line n1 with:
BiFunction<IntUnaryOperator> inFu = x -> y -> x*y;

Answer: C

NEW QUESTION 96
What is the proper way to defined a method that take two int values and returns their sum as an int value?

A. int sum(int first, int second) { return first + second; }
B. int sum(int first, second) { return first + second; }
C. sum(int first, int second) { return first + second; }
D. void sum (int first, int second) { return first + second; }
E. int sum(int first, int second) { first + second; }

Answer: A

NEW QUESTION 97
Given the code fragments:
class Employee {
Optional<Address> address;
Employee (Optional<Address> address) {
this.address = address;
}
public Optional<Address> getAddress() { return address; }
}
class Address {
String city = "New York";
public String getCity { return city: }
public String toString() {
return city;
}
}
and
Address address = null;
Optional<Address> addrs1 = Optional.ofNullable (address);
Employee e1 = new Employee (addrs1);
String eAddress = (addrs1.isPresent()) ? addrs1.get().getCity() : "City Not
available";
What is the result?

A. New York
B. City Not available
C. A NoSuchElementException is thrown at run time.
D. null

Answer: B

NEW QUESTION 98
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<Country> couList = Arrays.asList (
new Country ("Japan", Country.Continent.ASIA),
new Country ("Italy", Country.Continent.EUROPE),
new Country ("Germany", Country.Continent.EUROPE)); Map<Country.Continent, List<String>> regionNames = couList.stream () .collect(Collectors.groupingBy (Country ::getRegion, Collectors.mapping(Country::getName, Collectors.toList())))); System.out.println(regionNames);
What is the output?