[Q58-Q82] Real Exam Questions 1Z0-819 Dumps Exam Questions in here [Oct-2021]

Real Exam Questions 1Z0-819 Dumps Exam Questions in here [Oct-2021]

Get Latest Oct-2021 Conduct effective penetration tests using 1Z0-819

NEW QUESTION 58
Assuming the Widget class has a getPrice method, this code does not compile:

Which two statements, independently, would allow this code to compile? (Choose two.)

A. Replace line 5 with widgetStream.filter((Widget a) > a.getPrice() > 20.00).
B. Replace line 1 with List<Widget> widgetStream = widgets.stream();.
C. Replace line 5 with widgetStream.filter(a > ((Widget)a).getPrice() > 20.00).
D. Replace line 4 with Stream<Widget> widgetStream = widgets.stream();.

Answer: C,D

NEW QUESTION 59
Given:

Which two are correct? (Choose two.)

A. Option C
B. Option A
C. Option D
D. Option B

Answer: A,C

NEW QUESTION 60
Given:

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

A. Consumer consumer = (String args) -> System.out.print(args);
B. Consumer consumer = msg -> { return System.out.print(msg); };
C. Consumer consumer = System.out::print;
D. Consumer consumer = var arg -> {System.out.print(arg);};

Answer: C

Explanation:

NEW QUESTION 61
Given:

You want to use the myResource class in a try-with-resources statement. Which change will accomplish this?

A. Extend AutoCloseable and override the autoClose method.
B. Extend AutoCloseable and override the close method.
C. Implement AutoCloseable and override the close method.
D. Implement AutoCloseable and override the autoClose method.

Answer: C

NEW QUESTION 62
Which two statements correctly describe capabilities of interfaces and abstract classes? (Choose two.)

A. Interfaces cannot have instance fields but abstract classes can.
B. Interfaces cannot have protected methods but abstract classes can.
C. Both interfaces and abstract classes can have final methods.
D. Interfaces cannot have static methods but abstract classes can.
E. Interfaces cannot have methods with bodies but abstract classes can.

Answer: A,B

NEW QUESTION 63
Given:

What is the result?

A. 0
B. 1
C. 2
D. 3

Answer: A

NEW QUESTION 64
Given:

After which line can we insert assert i < 0 || values[i] <= values[i + 1]; to verify that the values array is partially sorted?

A. after line 10
B. after line 8
C. after line 5
D. after line 6

Answer: D

Explanation:

NEW QUESTION 65
Given the code fragment:

What is the result?

A. 0
B. 1
C. 2
D. 3

Answer: D

Explanation:

NEW QUESTION 66
Given:

What is the output?

A. apple:APPLE orange:ORANGE banana:BANANA
B. :APPLE:ORANGE:BANANA
C. appleorangebanana
:APPLE:ORANGE:BANANA
D. :APPLE:ORANGE:BANANA
appleorangebanana
E. APPLE:apple ORANGE:orange BANANA:banana

Answer: A

Explanation:

NEW QUESTION 67
Given:

Which two allow a.Main to allocate a new Person? (Choose two.)

A. In Line 1, remove the access modifierPerson() {
B. In Line 1, change the access modifier to privateprivate Person() {
C. In Line 1, change the access modifier to publicpublic Person() {
D. In Line 2, add extends Person to the Main classpublic class Main extends Person {and change Line 3 to create a new Main objectPerson person = new Main();
E. In Line 2, change the access modifier to protectedprotected class Main {

Answer: C,D

NEW QUESTION 68
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?

A. final String getFirstLetter() { return A.toString(); }
B. String getFirstLetter() { return A.toString(); }
C. static String getFirstLetter() { return Alphabet.values()[1].toString(); }
D. static String getFirstLetter() { return A.toString(); }

Answer: D

NEW QUESTION 69
Given:

You wants to make the reduction operation parallelized.
Which two modifications will accomplish this?

A. Replace line 1 with int sum = numbers. Stream (). Interate (0, a -> a+1. Reduce (0, (n m) -> n+m);
B. Replace line 1 with int sum = numbers. Parallel ( ). Stream ( ). Reduce (0, (n, m ) -> n + m);
C. Replace line 1with int sum = numbers. ParallelStream ( ). Reduce (0, (n, m ) -> n + m);
D. Replace line 1with int sum = number. Stream ( ) . flatMap (a -> a) .reduce (0, (n, m) -> n +m );
E. Replace line 1with int sum = number.stream. parallel ( ). Reduce (0, (n, m) -> n + m);

Answer: A,D

NEW QUESTION 70
Given:

What is the result?

A. NullPointerException is thrown at line 4.
B. A compilation error occurs.
C. NullPointerException is thrown at line 10.
D. Hello

Answer: D

Explanation:

NEW QUESTION 71
Given:

What is the result?

A. 0
B. 1
C. 2
D. 3

Answer: C

Explanation:

NEW QUESTION 72
Given:

Which two are correct? (Choose two.)

A. The output will be exactly 2 1 3 4 5.
B. Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5.
C. Replacing forEach() with forEachOrdered(), the program prints 1 2 3 4 5.
D. Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5, but the order is unpredictable.
E. The program prints 1 4 2 3, but the order is unpredictable.

Answer: C,E

Explanation:

NEW QUESTION 73
Given:

Which two statements are true if the method is added to Bar? (Choose two.)

A. public <T> List<T> foo(Collection<T> arg) { ... } overrides Foo.foo.
B. public <T> Collection<T> bar(Collection<T> arg) { ... } overloads Foo.foo.
C. public <T> Collection<T> foo(Collection<T> arg) { ... } overloads Foo.foo.
D. public <T> Iterable<T> foo(Collection<T> arg) { ... } overrides Foo.foo.
E. public Collection<String> foo(Collection<String> arg) { ... } overrides Foo.foo.
F. public <T> Collection<T> foo(Stream<T> arg) { ... } overloads Foo.foo.

Answer: A,D

NEW QUESTION 74
Given:

executed using this command:
java Myclass My Car is red
What is the output of this class?

A. My--Car--is
B. Car--red--My
C. My--is--java
D. java--Myclass--My
E. Myclass--Car--red

Answer: B

NEW QUESTION 75
Given:

What is the result?

A. The compilation fails at line 2.
B. The compilation fails at line 8.
C. The compilation fails at line 9.
D. Hello World

Answer: D

Explanation:

NEW QUESTION 76
Why does this compilation fail?

A. The method x. print (object) is not accessible to Y.
B. The method print (object) and the method print (object...) are duplicates of each other.
C. In method x. print (Collection), system. Out :: prints is an invalid Java identifier.
D. The method Y. print (object...) cannot override the final method x.print (object....).
E. The method Y. print (object) does not call the method super.print (object)

Answer: B

NEW QUESTION 77
Examine this excerpt from the declaration of the java.se module:

What does the transitive modifier mean?

A. Any module that attempts to require the java.se module actually requires the java.sql module instead.
B. Any module that requires the java.sql module does not need to require the java.se module.
C. Only a module that requires the java.se module is permitted to require the java.sql module.
D. Any module that requires the java.se module does not need to require the java.sql module.

Answer: C

NEW QUESTION 78
Given:

Which two are correct? (Choose two.)