Oracle 1z0-809 - Java SE 8 Programmer II

Given the code fragment:

What is the result?

Given the code fragments:

class Caller implements Callable {

String str;

public Caller (String s) {this.str=s;}

public String call()throws Exception { return str.concat (“Caller”);}

}

class Runner implements Runnable {

String str;

public Runner (String s) {this.str=s;}

public void run () { System.out.println (str.concat (“Runner”));}

}

and

public static void main (String[] args) InterruptedException, ExecutionException {

ExecutorService es = Executors.newFixedThreadPool(2);

Future f1 = es.submit (new Caller (“Call”));

Future f2 = es.submit (new Runner (“Run”));

String str1 = (String) f1.get();

String str2 = (String) f2.get();//line n1

System.out.println(str1+ “:” + str2);

}

What is the result?

Which action can be used to load a database driver by using JDBC3.0?

Given the code fragments:

and

What is the result?

Given the code fragment:

Which code fragment, when inserted at line n1, ensures false is printed?

Given:

class Vehicle implements Comparable{

int vno;

String name;

public Vehicle (int vno, String name) {

this.vno = vno,;

this.name = name;

}

public String toString () {

return vno + “:” + name;

}

public int compareTo(Vehicle o) {

return this.name.compareTo(o.name);

}

and this code fragment:

Set vehicles = new TreeSet <> ();

vehicles.add(new Vehicle (10123, “Ford”));

vehicles.add(new Vehicle (10124, “BMW”));

System.out.println(vehicles);

What is the result?

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!?

Which two statements are true about localizing an application? (Choose two.)

Given the definition of the Vehicle class:

Class Vehhicle {

int distance;//line n1

Vehicle (int x) {

this distance = x;

}

public void increSpeed(int time) {//line n2

int timeTravel = time;//line n3

class Car {

int value = 0;

public void speed () {

value = distance /timeTravel;

System.out.println (“Velocity with new speed”+value+”kmph”);

}

}

new Car().speed();

}

}

and this code fragment:

Vehicle v = new Vehicle (100);

v.increSpeed(60);

What is the result?

Given:

public interface Moveable {

public default void walk (Integer distance) {System.out.println(“Walking”);)

public void run(Integer distance);

}

Which statement is true?