Get Dec-2022 Download Latest & Valid Questions For Oracle 1z1-819 exam [Q101-Q118]

1z1-819 Oracle

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Get Dec-2022 Download Latest & Valid Questions For Oracle 1z1-819 exam [Q101-Q118]

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Get Dec-2022 Download Latest & Valid Questions For Oracle 1z1-819 exam

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NO.101 Given:

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

FooException is a subclass of RuntimeError.

FooException is unchecked.

The body of foo can only throw FooException.

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

NO.102 Given:

What is the result?

The compilation fails.

1.99,2.99,0

1.99,2.99,0.0

1.99,2.99

NO.103 Examine this excerpt from the declaration of the java.se module:

What does the transitive modifier mean?

Only a module that requires the java.se module is permitted to require the java.sql module.

Any module that requires the java.se module does not need to require the java.sql module.

Any module that attempts to require the java.se module actually requires the java.sql module instead.

Any module that requires the java.sql module does not need to require the java.se module.

NO.104 var numbers = List.of(0,1,2,3,4,5,6,7,8,9);
You want to calculate the average of numbers. Which two codes will accomplish this? (Choose two.)

double avg = numbers.stream().parallel().averagingDouble(a > a);

double avg = numbers.parallelStream().mapToInt (m > m).average().getAsDouble ();

double avg = numbers.stream().mapToInt (i > i).average().parallel();

double avg = numbers.stream().average().getAsDouble();

double avg = numbers.stream().collect(Collectors.averagingDouble(n > n));

NO.105 Given this requirement:
Module vehicle depends on module part and makes its com.vehicle package available for all other modules.
Which module-info.java declaration meets the requirement?

Option A

Option B

Option C

Option D

NO.106 Given:

and the commands:

What is the result on execution of these commands?
Test.class – > java.sql -> java.base

On execution, the jdepscommand displays an error.
Test.class -> java.base

Test.class – > java.sql
Test.class -> java.base

Test.class – > java.sql
java.sql -> java.base

NO.107 Given:

What is the result?

2,34,34,5

2,34,54,5

2,54,54,5

2,34,54,3

NO.108 Which three initialization statements are correct? (Choose three.)

int x = 12_34;

short sh = (short)’A’;

String contact# = “(+2) (999) (232)”;

boolean true = (4 == 4);

float x = 1.99;

int[][] e = {{1,1},{2,2}};

byte b = 10;char c = b;

NO.109 Given:

executed with this command:
java Main one two three
What is the output of this class?

The compilation fails.

1) one2) two3) three

A java.lang.ArrayIndexOutOfBoundsException is thrown.

1) one

nothing

NO.110 Given:

What is the result?

compilation error

0 5

6 13

5 12

NO.111 Given:

What is the result?

An indexOutofBoundsException is thrown at runtime.

At once 0

Hat at store 4

At once 1

Hat at store 1

NO.112 Given:

What is the result?

The compilation fails due to an error in line 4.

The compilation fails due to an error in line 3.

The compilation fails due to an error in line 2.

The compilation fails due to an error in line 1.

The compilation fails due to an error in line 5.

NO.113 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.114 Given:

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

Car–red–My

My–Car–is

My–is–java

java–Myclass–My

Myclass–Car–red

NO.115 Given the code fragment:

Which code fragment replaces the for statement?

IntStream.rangeClosed(l, 100).map(FizzBuzz::convert).forEach(System.out::println);

IntStream.ranged, 100).map(FizzBuzz::convert).forEach(System.out::println);

intstream.rangeclosed(l, 100).mapToObj{FizzBuzz::convert).forEach(System.out::printIn);

IntStream.range(1, 100).mapToObj(FizzBuzz::convert).forEach(System.out::println);

NO.116 Given:

What is the expected result of javac?

javac fails to compile the class and prints the error message, C:workspace4Mycar.java:1:error: package java does not exist

javac compiles Mycar.java without errors or warnings.

javac fails to compile the class and prints the error message, C:workspace4Mycar.java:1:error: expected import java.lang

javac fails to compile the class and prints the error message, Error: Could not find or load main class Mycar.class

NO.117 Given:

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

0). one

0). one1). two2). three

The compilation fails.

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

A java.lang.NullPointerException is thrown.

NO.118 Given:
jdeps -jdkinternals C:workspace4SimpleSecurityjarclasses.jar
Which describes the expected output?

jdeps lists the module dependencies and the package names of all referenced JDK internal APIs. If any are found, the suggested replacements are output in the console.

jdeps outputs an error message that the -jdkinternals option requires either the -summary or the – verbose options to output to the console.

The -jdkinternals option analyzes all classes in the .jar and prints all class-level dependencies.

The -jdkinternals option analyzes all classes in the .jar for class-level dependencies on JDK internal APIs. If any are found, the results with suggested replacements are output in the console.

Explanation
-jdkinternals option analyzes all classes in the .jar for class-level dependencies on JDK internal APIs. If any are found, the results with suggested replacements are output in the console.

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