Free 1Z0-852 Exam Dumps Preview

Which capability exists only in java.io.FileWriter?

Given:

5. import java.util.Date;
6. import java.text.DateFormat;

21. DateFormat df
22. Date date = new Date();
23. // insert code here
24. String s = df.format(date);

Which code fragment, inserted at line 23, allows the code to compile?

Which can appropriately be thrown by a programmer using Java SE technology to create a desktop application?

Given:

11. public class PingPong implements Runnable {
12. synchronized void hit(long n) {
13. for(int i = 1; i < 3; i++)
14. System.out.print(n + "-" + i + " ");
15. }
16. public static void main(String[] args) {
17. new Thread(new PingPong()).start();
18. new Thread(new PingPong()).start();
19. }
20. public void run() {
21. hit(Thread.currentThread().getId());
22. }
23. }

Which two statements are true? (Choose two.)

Given the following directory structure:

And the following command line invocation:

javac -d classes source/Utils.java Assume the current directory is bigProject, what is the result?

Given:

11. public class Yikes {
12.
13. public static void go(Long n) {System.out.print("Long ");}
14. public static void go(Short n) {System.out.print("Short ");}
15. public static void go(int n) {System.out.print("int ");}
16. public static void main(String [] args) {
17. short y = 6;
18. long z = 7;
19. go(y);
20. go(z);
21. }
22. }

What is the result?

Given the following six method names:

addListener
addMouseListener
setMouseListener
deleteMouseListener
removeMouseListener
registerMouseListener

How many of these method names follow JavaBean Listener naming rules?

Given:

23. Object [] myObjects = {
24. new Integer(12),
25. new String("foo"),
26. new Integer(5),
27. new Boolean(true)
28. };
29. Arrays.sort(myObjects);
30. for(int i=0; i<myObjects.length; i++) {
31. System.out.print(myObjects[i].toString());
32. System.out.print(" ");
33. }

What is the result?

DRAG DROP

Place the Types in one of the Type columns, and the Relationships in the Relationship column, to define appropriate has-a and is-a relationships.

Given:

10. abstract class A {
11. abstract void a1();
12. void a2() { }
13. }
14. class B extends A {
15. void a1() { }
16. void a2() { }
17. }
18. class C extends B { void c1() { } }

and:

A x = new B(); C y = new C(); A z = new C();

What are four valid examples of polymorphic method calls? (Choose four.)

Given that:

Gadget has-a Sprocket and Gadget has-a Spring and Gadget is-a Widget and Widget has-a Sprocket

Which two code fragments represent these relationships? (Choose two.)

Given:

21. class Money {
22. private String country = "Canada";
23. public String getC() { return country; }
24. }
25. class Yen extends Money {
26. public String getC() { return super.country; }
27. }
28. public class Euro extends Money {
29. public String getC(int x) { return super.getC(); }
30. public static void main(String[] args) {
31. System.out.print(new Yen().getC()
+ " " + new Euro().getC());
32. }
33. }

What is the result?

Given:

11. public class Barn {
12. public static void main(String[] args) {
13. new Barn().go("hi", 1);
14. new Barn().go("hi", "world", 2);
15. }
16. public void go(String... y, int x) {
17. System.out.print(y[y.length - 1] + " ");
18. }
19. }

What is the result?

Given:

11. public class Commander {
12. public static void main(String[] args) {
13. String myProp = /* insert code here */
14. System.out.println(myProp);
15. }
16. }

and the command line:

java -Dprop.custom=gobstopper Commander

Which two, placed on line 13, will produce the output gobstopper? (Choose two.)

Given:

1. public class Donkey2 {
2. public static void main(String[] args) {
3. boolean assertsOn = true;
4. assert (assertsOn) : assertsOn = true;
5. if(assertsOn) {
6. System.out.println("assert is on");
7. }
8. }
9. }

If class Donkey is invoked twice, the first time without assertions enabled, and the second timewith assertions enabled, what are the results?