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Oracle Updated 1z0-809 Exam Questions and Answers by quinn

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Oracle 1z0-809 Exam Overview :

Exam Name: Java SE 8 Programmer II
Exam Code: 1z0-809 Dumps
Vendor: Oracle Certification: Java SE
Questions: 208 Q&A's Shared By: quinn
Question 36

Given:

class Bird {

public void fly () { System.out.print(“Can fly”); }

}

class Penguin extends Bird {

public void fly () { System.out.print(“Cannot fly”); }

}

and the code fragment:

class Birdie {

public static void main (String [ ] args) {

fly( ( ) -> new Bird ( ));

fly (Penguin : : new);

}

/* line n1 */

}

Which code fragment, when inserted at line n1, enables the Birdie class to compile?

Options:

A.

static void fly (Consumer bird) {bird :: fly ();}

B.

static void fly (Consumer bird) {bird.accept( ) fly ();}

C.

static void fly (Supplier bird) {bird.get( ) fly ();}

D.

static void fly (Supplier bird) {LOST

Discussion
Question 37

Given the code fragment:

Questions 37

Assume that the value of now is 6:30 in the morning.

What is the result?

Options:

A.

An exception is thrown at run time.

B.

0

C.

60

D.

1

Discussion
Question 38

Given the code fragment:

Path path1 = Paths.get(“/app/./sys/”);

Path res1 = path1.resolve(“log”);

Path path2 = Paths.get(“/server/exe/”);

Path res1 = path1.resolve(“/readme/”);

System.out.println(res1);

System.out.println(res2);

What is the result?

Options:

A.

/app/sys/log/readme/server/exe

B.

/app/log/sys/server/exe/readme

C.

/app/./sys/log/readme

D.

/app/./sys/log/server/exe/readme

Discussion
Question 39

Given the code fragments:

Questions 39

and

Questions 39

Which two modifications enable to sort the elements of the emps list? (Choose two.)

Options:

A.

Replace line n1 withclass Person extends Comparator

B.

At line n2 insertpublic int compareTo (Person p) {return this.name.compareTo (p.name);}

C.

Replace line n1 withclass Person implements Comparable

D.

At line n2 insertpublic int compare (Person p1, Person p2) {return p1.name.compareTo (p2.name);}

E.

At line n2 insert:public int compareTo (Person p, Person p2) {return p1.name.compareTo (p2.name);}

F.

Replace line n1 withclass Person implements Comparator

Discussion
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