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Certificate 1z0-809 Exam | Latest 1z0-809 Test Answers

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Oracle 1z0-809 exam is a computer-based exam that consists of 85 multiple-choice questions. Candidates are given 150 minutes to complete the exam and must achieve a score of 65% or higher to pass. 1z0-809 Exam is available in multiple languages and can be taken at authorized testing centers around the world.

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1z0-809 Test Guide - Java SE 8 Programmer II Study Question & 1z0-809 Exam Questions

One of the key factors for passing the exam is practice. Candidates must use 1z0-809 practice test material to be able to perform at their best on the real exam. This is why VerifiedDumps has developed three formats to assist candidates in their 1z0-809 Preparation. These formats include desktop-based 1z0-809 practice test software, web-based practice test, and a PDF format.

Oracle Java SE 8 Programmer II Sample Questions (Q195-Q200):

NEW QUESTION # 195
Given:
class Book {
int id;
String name;
public Book (int id, String name) {
this.id = id;
this.name = name;
}
public boolean equals (Object obj) { //line n1
boolean output = false;
Book b = (Book) obj;
if (this.name.equals(b name))}
output = true;
}
return output;
}
}
and the code fragment:
Book b1 = new Book (101, "Java Programing");
Book b2 = new Book (102, "Java Programing");
System.out.println (b1.equals(b2)); //line n2
Which statement is true?

A. A compilation error occurs. To ensure successful compilation, replace line n1with:
boolean equals (Book obj) {
B. The program prints true.
C. The program prints false.
D. A compilation error occurs. To ensure successful compilation, replace line n2with:
System.out.println (b1.equals((Object) b2));

Answer: B

NEW QUESTION # 196
Given the code fragments:

and

What is the result?

A. France
Optional[NotFound]
B. Optional[France]
Not Found
C. Optional [France]
Optional [NotFound]
D. France
Not Found

Answer: D

NEW QUESTION # 197
Given the code fragment:

Which two code fragments, when inserted at line n1independently, result in the output PEEK: Unix?

A. allMatch ();
B. .findFirst ();
C. anyMatch ();
D. .noneMatch ();
E. .findAny ();

Answer: B,E

NEW QUESTION # 198
Which two reasons should you use interfaces instead of abstract classes?

A. You expect that classes that implement your interfaces have many common methods or fields, or require access modifiers other than public.
B. You want to take advantage of multiple inheritance of type.
C. You expect that unrelated classes would implement your interfaces.
D. You want to share code among several closely related classes.
E. You want to declare non-static on non-final fields.

Answer: B,C

Explanation:
https://docs.oracle.com/javase/tutorial/java/IandI/abstract.html

NEW QUESTION # 199
Given:

and

Which interface from the java.util.functionpackage should you use to refactor the class Txt?

A. Supplier
B. Consumer
C. Predicate
D. Function

Answer: A

Explanation:
Explanation/Reference:
Reference: https://docs.oracle.com/javase/8/docs/api/java/util/function/package-summary.html

NEW QUESTION # 200
......

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Kurt Walsh Kurt Walsh

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