Oracle 1Z0-819 Dumps – The Sure Way To Pass Exam [Q111-Q128]

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Oracle 1Z0-819 Dumps – The Sure Way To Pass Exam

1Z0-819 Exam Questions (Updated 2022) 100% Real Question Answers

NO.111 Analyze the code:

Which two options can you insert inside println method to produce Global:namescope? (Choose two.)

Test.prefix+Test.name

new Test().prefix+new Test().name

Test.prefix+Test.getName()

Test.getName+prefix

prefix+Test.name

prefix+name

NO.112 Given the code fragment:

What is the output?

The compilation fails.

[-1, -2, -3]

[-3, -2, -1]

A runtime exception is thrown.

NO.113 Given the code fragment:

Which action enables Computatorclass to compile?

change Line 1 to add throws NumberFormatException

change Line 3 to Double sum = 0.0;

change Line 5 to List<Double> numbers = List.of(5, 4, 6, 3, 7, 2, 8, 1, 9);

change Line 2 to public Double sum ( C collection) {

change Line 4 to for (Double n : collection) {

NO.114 Given the code fragment:

What change on line 1 will make this code compile?

Add catch (L |N e).

Add catch (L |M N e).

Add catch (L e).

Add catch (N | L | M e).

Add catch (M |L e).

NO.115 Given:

Which statement is true about the Fox class?

Fox class does not have to override inhabit method, so long as it does not try to call it.

Fox class does not have to override the inhabit method if Forest and Town provide compatible implementations.

Fox class must implement either Forest or Town interfaces, but not both.

The inhabit method implementation from the first interface that Fox implements will take precedence.

Fox class must provide implementation for the inhabit method.

NO.116 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.)

Replace line 5 with widgetStream.filter(a > ((Widget)a).getPrice() > 20.00).

Replace line 1 with List<Widget> widgetStream = widgets.stream();.

Replace line 5 with widgetStream.filter((Widget a) > a.getPrice() > 20.00).

Replace line 4 with Stream<Widget> widgetStream = widgets.stream();.

NO.117 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.

NO.118 Given:

Which two are correct? (Choose two.)

The output will be exactly 2 1 3 4 5.

The program prints 1 4 2 3, but the order is unpredictable.

Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5, but the order is unpredictable.

Replacing forEach() with forEachOrdered(), the program prints 1 2 3 4 5.

Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5.

NO.119 Given:

Which two interfaces can be used in lambda expressions? (Choose two.)

MyInterface1

MyInterface3

MyInterface5

MyInterface2

MyInterface4

NO.120 Which two commands are used to identify class and module dependencies? (Choose two.)

jmod describe

java Hello.java

jdeps –list-deps

jar –show-module-resolution

java –show-module-resolution

NO.121 Given:

What is the result?

6910 3

10126 3

6104 3

NO.122 Which two are functional interfaces? (Choose two.)

Option A

Option B

Option C

Option D

Option E

NO.123 Given:

Which three are correct? (Choose three.)

b1.foo(li) prints Hello world!

f1.foo(li) prints Bonjour le monde!

f1.foo(li) prints Hello world!

f1.foo(li) prints Hola Mundo!

b1.foo(li) prints Bonjour le monde!

f2.foo(li) prints Hola Mundo!

f2.foo(li) prints Bonjour le monde!

b1.foo(li) prints Hola Mundo!

f2.foo(li) prints Hello world!

NO.124 Your organization makes mlib.jar available to your cloud customers. While working on a code cleanup project for mlib.jar, you see this method by customers:

What security measures should be added to this method so that it meets the requirements for a customer accessible method?