Free Oracle 1Z0-809 Exam Questions

Become Oracle Certified with updated 1Z0-809 exam questions and correct answers

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Total 469 Questions | Updated On: Feb 10, 2026

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Question 1

Given code of Test.java file:

1. package com.udayan.ocp;

3. public class Test {

4. private static void div(int i, int j) {

5. try {

6. System.out.println(i / j);

7. } catch(ArithmeticException e) {

8. throw (RuntimeException)e;

9. }

10. }

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

12. try {

13. div(5, 0);

14. } catch(ArithmeticException e) {

15. System.out.println("AE");

16. } catch(RuntimeException e) {

17. System.out.println("RE");

18. }

19. }

20. }

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

A : AE

B : RE

C : Compilation error

D : Program ends abruptly

Answer: A

Question 2

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?

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

Question 3

Given code of Test.java file:

1. package com.udayan.ocp;

3. import java.util.stream.Stream;

5. public class Test {

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

7. Stream stream = Stream.of("d", "cc", "bbb", "aaaa");

8. stream.sorted().forEach(System.out::println);

9. }

10. }

Which of the following needs to be done, so that output is:

bbb

aaaa

A : No need to make any changes, on execution given code prints expected result

B : Replace stream.sorted() with stream.sorted((s1,s2) -> s1.length() - s2.length())

C : Replace stream.sorted() with stream.sorted((s1,s2) -> s2.length() - s1.length())

Answer: B

Question 4

Given the code fragment:

List<String> empDetails = Arrays.asList(“100, Robin, HR”,

“200, Mary, AdminServices”,

“101, Peter, HR”);

empDetails.stream()

.filter(s-> s.contains(“1”))

.sorted()

.forEach(System.out::println); //line n1

What is the result?

A : 100, Robin, HR 101, Peter, HR

B : A compilation error occurs at line n1.

C : 100, Robin, HR101, Peter, HR200, Mary, AdminServices

D : 100, Robin, HR200, Mary, AdminServices101, Peter, HR

Answer: A

Question 5

Given:

and the code fragment:

What is the result?

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

Page: 1 / 94

Total 469 Questions | Updated On: Feb 10, 2026

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