Online 1Z0-809 Practice Test

Question 1

Given:

and the code fragment:

What is the result?

Options :

A :

A compilation error occurs at line n2.

B :

A compilation error occurs because the try block doesn’t have a catch or finally block.

C : A compilation error occurs at line n1.

D :

The program compiles successfully.

Answer: B

Question 2

Given code of Test.java file:

1. package com.udayan.ocp;

2.

3. import java.util.stream.Stream;

4.

5. public class Test {

6. public static void main(String[] args) {

7. System.out.println(Stream.of(10, 0, -10).sorted().findAny().orElse(-1));

8. }

9. }

Which of the following statements are true about the execution of Test class?

Select 2 options.

Options :

A : It will never print -1 on to the console.

B : It can print any number from the stream.

C : It will always print -10 on to the console.

D : It will always print 0 on to the console.

E : It will always print 10 on to the console.

Answer: A,B

Question 3

Given:

and the code fragment:

Which two code fragments, when inserted at line n1 independently, enable the code to print

TruckCarBike?

Options :

A : .sorted ((v1, v2) -> v1.getVId() < v2.getVId())

B : .sorted (Comparable.comparing (Vehicle: :getVName)).reversed ()

C :

.map (v -> v.getVid())

.sorted ()

D : .sorted((v1, v2) -> Integer.compare(v1.getVId(), v2.getVid()))

E : .sorted(Comparator.comparing ((Vehicle v) -> v.getVId()))

Answer: A,D

Question 4

Given code of Test.java file:

package com.udayan.ocp;

import java.util.Arrays;

import java.util.List;

public class Test {

public static void main(String[] args) {

List list = Arrays.asList("A", "E", "I", "O");

list.add("U");

list.forEach(System.out::print);

}

What will be the result of compiling and executing Test class?

Options :

A : AEIOU

B : Runtime exception

C : Compilation error

D : UAEIO

E : AEIO

Answer: B

Question 5

Given:

class UserException extends Exception { }

class AgeOutOfLimitException extends UserException { }

and the code fragment:

class App {

public void doRegister(String name, int age)

throws UserException, AgeOutOfLimitException {

if (name.length () < 6) {

throw new UserException ();

} else if (age >= 60) {

throw new AgeOutOfLimitException ();

} else {

System.out.println(“User is registered.”);

}

public static void main(String[ ] args) throws UserException {

App t = new App ();

t.doRegister(“Mathew”, 60);

}

What is the result?

Options :

A :

User is registered.

B :

An AgeOutOfLimitException is thrown.

C : A UserException is thrown.

D : A compilation error occurs in the main method.

Answer: B

EXPERTY DESIGNED 1Z0-809 PRACTICE TEST