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1z0-809 Question and answers Include

Total Questions: 208 Q&A's

Single Choice: 187 Q&A's

Multiple Choice: 21 Q&A's

Oracle 1z0-809 Exam Dumps - Valid Questions Answers

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1z0-809 Questions and Answers

Question # 1

Given the code fragment:

Stream files = Files.list(Paths.get(System.getProperty(â€œuser.homeâ€)));

files.forEach (fName -> {//line n1

try {

Path aPath = fName.toAbsolutePath();//line n2

System.out.println(fName + â€œ:â€

+ Files.readAttributes(aPath, Basic.File.Attributes.class).creationTime

());

} catch (IOException ex) {

ex.printStackTrace();

});

What is the result?

All files and directories under the home directory are listed along with their attributes.

A compilation error occurs at line n1.

The files in the home directory are listed along with their attributes.

A compilation error occurs at line n2.

Question # 2

Given:

class Sum extends RecursiveAction { //line n1

static final int THRESHOLD_SIZE = 3;

int stIndex, lstIndex;

int [ ] data;

public Sum (int [ ]data, int start, int end) {

this.data = data;

this stIndex = start;

this. lstIndex = end;

}

protected void compute ( ) {

int sum = 0;

if (lstIndex â€“ stIndex <= THRESHOLD_SIZE) {

for (int i = stIndex; i < lstIndex; i++) {

sum += data [i];

}

System.out.println(sum);

} else {

new Sum (data, stIndex + THRESHOLD_SIZE, lstIndex).fork( );

new Sum (data, stIndex,

Math.min (lstIndex, stIndex + THRESHOLD_SIZE)

).compute ();

}

and the code fragment:

ForkJoinPool fjPool = new ForkJoinPool ( );

int data [ ] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

fjPool.invoke (new Sum (data, 0, data.length));

and given that the sum of all integers from 1 to 10 is 55.

Which statement is true?

The program prints several values that total 55.

The program prints 55.

A compilation error occurs at line n1.

The program prints several values whose sum exceeds 55.

Question # 3

Given the code fragment:

List colors = Arrays.asList(â€œredâ€, â€œgreenâ€, â€œyellowâ€);

Predicate test = n - > {

System.out.println(â€œSearchingâ€¦â€);

return n.contains(â€œredâ€);

};

colors.stream()

.filter(c -> c.length() >= 3)

.allMatch(test);

What is the result?

Searchingâ€¦

Searchingâ€¦Searchingâ€¦

Searchingâ€¦Searchingâ€¦Searchingâ€¦

A compilation error occurs.

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FAQs for Oracle 1z0-809 Exam Dumps

What is Oracle 1z0-809 exam?

The Oracle 1z0-809 exam, also known as the Java SE 8 Programmer II exam, is a certification test designed to validate your skills and knowledge in Java programming. It is aimed at individuals who have a strong understanding of Java SE 8 and want to demonstrate their proficiency in this programming language.

What is the format of Oracle 1z0-809 exam?

The Oracle 1Z0-809 exam is a 120-minute, multiple-choice test with 68 questions. To pass, you'll need to achieve a score of 65% or higher.

What is the Oracle 1z0-809 exam focused on?

The Oracle 1z0-809 exam focuses on advanced Java programming concepts, including object-oriented programming, functional programming, and the Java API. It covers topics such as Java class design, generics and collections, and concurrency.

What is the worth of taking the Java SE 1z0-809 exam?

Earning the Java SE 1z0-809 certification can significantly enhance your career prospects. It demonstrates your expertise in Java programming, making you a valuable asset to employers. It can lead to better job opportunities, higher salaries, and career advancement.

What are the prerequisites for the Java SE 1z0-809 exam?

There are no formal prerequisites for the Java SE 1z0-809 exam. However, it is recommended that candidates have a solid understanding of Java SE 8 and have completed the Java SE 8 Programmer I exam (1z0-808) before attempting this exam.

What is the difference between Oracle 1z0-809 and 1z0-811 exams?

The Oracle 1z0-809 Exam is the Java SE 8 Programmer II exam, which covers advanced Java programming topics. The 1z0-811 Exam, on the other hand, is the Java Foundations exam, which is more introductory and covers basic Java programming concepts.

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