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: Jan 28, 2026
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Question 1

Consider the code of Greet.java file:

1. package com.udayan.ocp;

2.  

3. public final class Greet {

4.     private String msg;

5.     public Greet(String msg) {

6.         this.msg = msg;

7.     }

8.  

9.     public String getMsg() {

10.         return msg;

11.     }

12.  

13.     public void setMsg(String msg) {

14.         this.msg = msg;

15.     }

16. }

Is Greet class an immutable class?


Answer: B
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?


Answer: B
Question 3

Given code of Test.java file:

1. package com.udayan.ocp;

2.  

3. interface Printer1 {

4.     default void print() {

5.         System.out.println("Printer1");

6.     }

7. }

8.  

9. class Printer2 {

10.     public void print() {

11.         System.out.println("Printer2");

12.     }

13. }

14.  

15. class Printer extends Printer2 implements Printer1 {

16.  

17. }

18.  

19. public class Test {

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

21.         Printer printer = new Printer();

22.         printer.print();

23.     }

24. }

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


Answer: D
Question 4

F: is accessible for reading and below is the directory structure for F:

1. F:.

2. └───A

3.     └───B

4.         └───C

5.                 Book.java

'Book.java' file is available under 'C' directory.

Given code of Test.java file: 

1. package com.udayan.ocp;

2.  

3. import java.nio.file.Path;

4. import java.nio.file.Paths;

5.  

6. public class Test {

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

8.         Path file = Paths.get("F:\\A\\B\\Book.java");

9.         System.out.println(file.toAbsolutePath());

10.     }

11. }

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


Answer: A
Question 5

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


1

and the code fragment:

2

What is the result? 


Answer: A
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Total 469 Questions | Updated On: Jan 28, 2026
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