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: Sep 22, 2026
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Question 1

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.


Answer: A,B
Question 2

Given the code fragment:

Untitled1-page69-image23
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 table has a column ID of type integer and the SQL query matches one record.
What is the result?


Answer: A
Question 3

Given structure of EMPLOYEE table: 

EMPLOYEE (ID integer, FIRSTNAME varchar(100), LASTNAME varchar(100), SALARY real, PRIMARY KEY (ID)) 

EMPLOYEE table contains below records: 

1. 101 John Smith 12000

2. 102 Sean Smith 15000

3. 103 Regina Williams 15500

4. 104 Natasha George 14600

Given code of Test.java file: 

1. package com.udayan.ocp;

2.  

3. import java.sql.*;

4. import java.util.Properties;

5.  

6. public class Test {

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

8.         String url = "jdbc:mysql://localhost:3306/ocp";

9.         Properties prop = new Properties();

10.         prop.put("user", "root");

11.         prop.put("password", "password");

12.         String query = "Select ID, FIRSTNAME, LASTNAME, SALARY FROM EMPLOYEE ORDER BY ID";

13.         try (Connection con = DriverManager.getConnection(url, prop);

14.              Statement stmt = con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);

15.              ResultSet rs = stmt.executeQuery(query);)

16.         {

17.             rs.afterLast();

18.             rs.relative(-1);

19.             rs.previous();

20.             System.out.println(rs.getInt(1));

21.         }

22.     }

23. }

Also assume: 

URL, username and password are correct.

SQL query is correct and valid.

The JDBC 4.2 driver jar is configured in the classpath.

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


Answer: A
Question 4

Given the code fragment:
List<String> colors = Arrays.asList(“red”, “green”, “yellow”);
Predicate<String> test = n - > {
 System.out.println(“Searching…”);
 return n.contains(“red”);
};
colors.stream()
 .filter(c -> c.length() >= 3)
 .allMatch(test);
What is the result?


Answer: C
Question 5

Given the code fragment:
Stream<Path> files = Files.walk(Paths.get(System.getProperty(“user.home”)));
 files.forEach (fName -> { //line n1
 try {
 Path aPath = fName.toAbsolutePath(); //line n2
 System.out.println(fName + “:”
 + Files.readAttributes(aPath,
Basic.File.Attributes.class).creationTime
());
 } catch (IOException ex) {
 ex.printStackTrace();
 });
What is the result?


Answer: A
Page:    1 / 94      
Total 469 Questions | Updated On: Sep 22, 2026
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