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Free 1Z0-809 Exam Questions with First Attempt Pass Assurance

Question 1

Given the code fragment:

9. Connection conn = DriveManager.getConnection(dbURL, userName, passWord);

10. String query = “SELECT id FROM Employee”;

11. try (Statement stmt = conn.createStatement()) {

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

13. stmt.executeQuery(“SELECT id FROM Customer”);

14. while (rs.next()) {

15. //process the results

16. System.out.println(“Employee ID: “+ rs.getInt(“id”));

17. }

18. } catch (Exception e) {

19. System.out.println (“Error”);

20. }

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 Error

D : compilation fails on line 13.

Answer: C

Question 2

Given:

class FuelNotAvailException extends Exception { }

class Vehicle {

void ride() throws FuelNotAvailException { //line n1

System.out.println(“Happy Journey!”);

}

class SolarVehicle extends Vehicle {

public void ride () throws Exception { //line n2

super ride ();

}

and the code fragment:

public static void main (String[] args) throws FuelNotAvailException, Exception

{

Vehicle v = new SolarVehicle ();

v.ride();

}

Which modification enables the code fragment to print Happy Journey!?

Options :

A : Replace line n1 with public void ride() throws FuelNotAvailException {

B :

Replace line n1 with protected void ride() throws Exception {

C : Replace line n2 with void ride() throws Exception {

D : Replace line n2 with private void ride() throws FuelNotAvailException {

Answer: B

Question 3

Assume that proper import statements are available, and 'fr' is the language code for French language.

And you have the following code snippet:

Locale [] loc = Locale.getAvailableLocales();

Which of the following statements will print all the supported (by the JVM) French Language Locale on to the console?

Select 2 options.

Options :

A : Arrays.stream(loc).filter(x -> x.getLanguage().contains("FR")).forEach(System.out::println);

B : Arrays.stream(loc).filter(x -> x.toString().contains("FR")).forEach(System.out::println);

C : Arrays.stream(loc).filter(x -> x.getLanguage().equals("fr")).forEach(System.out::println);

D : Arrays.stream(loc).filter(x -> x.toString().startsWith("fr")).forEach(System.out::println);

E : Arrays.stream(loc).filter(x -> x.startsWith("fr")).forEach(System.out::println);

Answer: C,D

Question 4

Given code of Test.java file:

package com.udayan.ocp;

import java.util.Arrays;

import java.util.List;

public class Test {

public static void main(String[] args) {

List list = Arrays.asList("A", "E", "I", "O");

list.add("U");

list.forEach(System.out::print);

}

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

Options :

A : AEIOU

B : Runtime exception

C : Compilation error

D : UAEIO

E : AEIO

Answer: B

Question 5

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?

Options :

A : Code compiles successfully but throws an exception on executing it

B : Code compiles successfully and on execution always prints "com.udayan.ocp.Player@64" on to the console

C : Code doesn't compile successfully

D : None of the other options

Answer: B

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