Online 1Z0-809 Practice Test

Question 1

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 2

Given the code fragment:

Assume that:

The required database driver is configured in the classpath.

The appropriate database is accessible with the dbURL, userName, and passWord exists.

The Employee and Customer tables are available and each table has id column with a few records and

the SQL queries are valid.

What is the result of compiling and executing this code fragment?

Options :

A : The program prints employee IDs.

B : The program prints customer IDs.

C : The program prints Exception.

D : compilation fails on line 13.

Answer: C

Question 3

Given code of Test.java file:

1. package com.udayan.ocp;

2.

3. public class Test {

4. private static void m1() throws Exception {

5. throw new Exception();

6. }

7.

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

9. try {

10. m1();

11. } finally {

12. System.out.println("A");

13. }

14. }

15. }

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

Options :

A : A is printed to the console and program ends normally

B : A is printed to the console, stack trace is printed and then program ends normally

C : A is printed to the console, stack trace is printed and then program ends abruptly

D : Compilation error

Answer: D

Question 4

Below is the code of Test.java file:

1. package com.udayan.ocp;

2.

3. class Outer {

4. static class Inner {

5. static void greetings(String s) {

6. System.out.println(s);

7. }

8. }

9. }

10.

11. public class Test {

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

13. /*INSERT*/

14. }

15. }

Which of the following 2 options can replace /*INSERT*/ such that there on executing class Test, output is: HELLO!?

Options :

A : Outer.Inner inner2 = new Outer.Inner();

inner2.greetings("HELLO!");

B : Inner.greetings("HELLO!");

C : Outer.Inner.greetings("HELLO!");

D : Outer.Inner inner1 = new Outer().new Inner();

inner1.greetings("HELLO!");

Answer: A,C

Question 5

Given the content of Operator.java, EngineOperator.java, and Engine.java files:

and the code fragment:

What is the result?

Options :

A : The Engine.java file fails to compile

B : The EngineOperator.java file fails to compile

C : The Operator.java file fails to compile

D : ON OFF

Answer: A

EXPERTY DESIGNED 1Z0-809 PRACTICE TEST