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

The last statement inside main(String []) method, increments value of i, which means it is not effectively final and hence compilation error.

//Test.java

package com.udayan.ocp;

 

class Player {

    String name;

    int age;

    Player() {

        this.name = "Virat";

        this.age = 29;

    }

    

    public int hashCode() {

        return 100;

    }

}

 

public class Test {

    public static void main(String[] args) {

        System.out.println(new Player());

    }

}

Hexadecimal representation of 100 is 64.

Which of the following option is correct?


Answer: B
Question 2

Given code of Test.java file: 

1. package com.udayan.ocp;

2.  

3. import java.util.Arrays;

4. import java.util.List;

5. import java.util.ListIterator;

6.  

7. public class Test {

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

9.         List list = Arrays.asList("T", "S", "R", "I", "F");

10.         ListIterator iter = list.listIterator(2);

11.         while(iter.hasNext()) {

12.             System.out.print(iter.next());

13.         }

14.     }

15. }

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


Answer: B
Question 3

Given the code fragment:
public class FileThread implements Runnable {
 String fName;
 public FileThread(String fName) { this.fName = fName; }
 public void run () System.out.println(fName);}
 public static void main (String[] args) throws IOException,
InterruptedException {
 ExecutorService executor = Executors.newCachedThreadPool();
 Stream<Path> listOfFiles = Files.walk(Paths.get(“Java Projects”));
 listOfFiles.forEach(line -> {
 executor.execute(new FileThread(line.getFileName().toString()));
 //
line n1
 });
 executor.shutdown();
 executor.awaitTermination(5, TimeUnit.DAYS); //
line n2
 }
}
The Java Projects directory exists and contains a list of files.
What is the result?


Answer: B
Question 4

Which of the following code will create/return a Locale object for the JVM, on which your code is running?



Answer: B
Question 5

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?


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