Vous pouvez comparer un peu les Q&As dans les autres sites web que lesquelles de Pass4Test, c'est pas difficile à trouver que la Q&A Oracle 1Z0-854 est plus complète. Vous pouvez télécharger le démo gratuit à prendre un essai de la qualité de Pass4Test. La raison de la grande couverture des questions et la haute qualité des réponses vient de l'expérience riche et la connaissances professionnelles des experts de Pass4Test. La nouvelle Q&A de Oracle 1Z0-854 lancée par l'équipe de Pass4Test sont bien populaire par les candidats.
Si vous voulez se prouver une compétition et s'enraciner le statut dans l'industrie IT à travers de test Certification Oracle 1Z0-854, c'est obligatoire que vous devez avior les connaissances professionnelles. Mais il demande pas mal de travaux à passer le test Certification Oracle 1Z0-854. Peut-être d'obtenir le Certificat Oracle 1Z0-854 peut promouvoir le tremplin vers l'Industrie IT, mais vous n'avez pas besoin de travailler autant dur à préparer le test. Vous avez un autre choix à faire toutes les choses plus facile : prendre le produit de Pass4Test comme vos matériaux avec qui vous vous pratiquez avant le test réel. La Q&A de Pass4Test est recherchée particulièrement pour le test IT.
Pass4Test est un fournisseur de formation pour une courte terme, et Pass4Test peut vous assurer le succès de test Oracle 1Z0-854. Si malheureusement, vous échouez le test, votre argent sera tout rendu. Vous pouvez télécharger le démo gratuit avant de choisir Pass4Test. Au moment là, vous serez confiant sur Pass4Test.
Les spécialiste profitant leurs expériences et connaissances font sortir les documentations particulière ciblées au test Oracle 1Z0-854 pour répondre une grande demande des candidats. Maintenant, la Q&A plus nouvelle, la version plus proche de test Oracle 1Z0-854 réel est lancée. C'est possible à réussir 100% avec le produit de Oracle 1Z0-854. Si malheureusement, vous ne passez pas le test, votre argent sera tout rendu. Vous pouvez télécharger le démo gratuit en Internet pour examiner la qualité de Q&A. N'hésitez plus d'ajouter le produit au panier, Pass4Test peut vous aider à réussir le rêve.
Code d'Examen: 1Z0-854
Nom d'Examen: Oracle (Java Standard Edition 5 Programmer Certified Professional Upgrade Exam)
Questions et réponses: 138 Q&As
1Z0-854 Démo gratuit à télécharger: http://www.pass4test.fr/1Z0-854.html
NO.1 }
NO.2 title = "Hello";
NO.3 }
What is the result?
A. Compilation fails because of an error in line 5.
B. A NullPointerException occurs at runtime.
C. Compilation fails because of an error in line 9.
D. A NumberFormatException occurs at runtime.
E. The value "4" is printed at the command line.
F. An IllegalStateException occurs at runtime.
Answer: B
Oracle examen certification 1Z0-854 1Z0-854
10.Given:
10. public class Hello {
11: String title;
NO.4 DRAG DROP
Click the Task button.
Answer:
NO.5 public Hello(int value) {
NO.6 }
NO.7 int value;
NO.8 }
Which statement is true?
A. This code will perform well and converting the code to use StringBuilder will not enhance the
performance.
B. This code will perform poorly. For better performance, the code should be rewritten: return "<" +
this.name + ">";
C. This code is NOT thread-safe.
D. The programmer can replace StringBuffer with StringBuilder with no other changes.
Answer: D
Oracle certification 1Z0-854 certification 1Z0-854 1Z0-854
19.DRAG DROP
Click the Task button.
Answer:
20.Click the Exhibit button.
What two must the programmer do to correct the compilation errors? (Choose two.)
A. change the wheelCount variable in Car to protected
B. insert a call to this() in the MeGo constructor
C. insert a call to this() in the Car constructor
D. insert a call to super(vin) in the MeGo constructor
E. insert a call to super() in the MeGo constructor
F. change line 3 in the MeGo class to super.wheelCount = 3;
Answer: A,D
Oracle 1Z0-854 examen 1Z0-854
NO.9 }
NO.10 int c = super.multiply(a, b);
NO.11 Hello();
NO.12 Given:
12. import java.io.*;
13. public class Forest implements Serializable {
14. private Tree tree = new Tree();
15. public static void main(String [] args) {
16. Forest f = new Forest();
17. try {
18. FileOutputStream fs = new FileOutputStream("Forest.ser");
19. ObjectOutputStream os = new ObjectOutputStream(fs);
20. os.writeObject(f); os.close();
21. } catch (Exception ex) { ex.printStackTrace(); }
22. } }
23.
24. class Tree { }
What is the result?
A. An exception is thrown at runtime.
B. An instance of Forest is serialized.
C. An instance of Forest and an instance of Tree are both serialized.
D. Compilation fails.
Answer: A
certification Oracle 1Z0-854 1Z0-854
NO.13 Which three statements concerning the use of the java.io.Serializable interface are true? (Choose
three.)
A. Objects from classes that use aggregation cannot be serialized.
B. The values in fields with the transient modifier will NOT survive serialization and deserialization.
C. It is legal to serialize an object of a type that has a supertype that does NOT implement
java.io.Serializable.
D. The values in fields with the volatile modifier will NOT survive serialization and deserialization.
E. An object serialized on one JVM can be successfully deserialized on a different JVM.
Answer: B,C,E
Oracle 1Z0-854 examen certification 1Z0-854 certification 1Z0-854
NO.14 return buffer.toString();
NO.15 Given:
1. interface TestA { String toString(); }
2. public class Test {
3. public static void main(String[] args) {
4. System.out.println(new TestA() {
5. public String toString() { return "test"; }
6. });
7. }
NO.16 this.value = value;
NO.17 Which two code fragments will execute the method doStuff() in a separate thread? (Choose two.)
A. new Thread() {
public void start() { doStuff(); }};
B. new Thread() {
public void run() { doStuff(); }};
C. new Thread(new Runnable() {
public void run() { doStuff(); }
}).start();
D. new Thread() {
public void start() { doStuff(); }
}.run();
E. new Thread(new Runnable() {
public void run() { doStuff(); }
}).run();
F. new Thread() {
public void run() { doStuff(); }
}.start();
Answer: C,F
Oracle examen certification 1Z0-854 certification 1Z0-854 1Z0-854 examen certification 1Z0-854 1Z0-854 examen
NO.18 Given:
20. public class CreditCard {
21.
22. private String cardID;
23. private Integer limit;
24. public String ownerName;
25.
26. public void setCardInformation(String cardID,
27. String ownerName,
28. Integer limit) {
29. this.cardID = cardID;
30. this.ownerName = ownerName;
31. this.limit = limit;
32. }
33. }
Which statement is true?
A. The ownerName variable breaks encapsulation.
B. The class is fully encapsulated.
C. The cardID and limit variables break polymorphism.
D. The code demonstrates polymorphism.
E. The setCardInformation method breaks encapsulation.
Answer: A
Oracle examen certification 1Z0-854 1Z0-854
NO.19 Given:
1. public class Boxer1{
2. Integer i;
3. int x;
4. public Boxer1(int y) {
5. x = i+y;
6. System.out.println(x);
7. }
8. public static void main(String[] args) {
9. new Boxer1(new Integer(4));
NO.20 return c;
NO.21 }
NO.22 DRAG DROP
Click the Task button. ?
Answer:
NO.23 }
and:
30. SubCalc sc = new SubCalc ();
31. System.out.println(sc.multiply(3,4));
32. System.out.println(SubCalc.multiply(2,2));
What is the result?
A. Compilation fails because of an error in line 31.
B. The code runs with no output.
C. 12
D. Compilation fails because of an error in line 22.
E. An exception is thrown at runtime.
F. Compilation fails because of an error in line 21.
Answer: D
Oracle examen certification 1Z0-854 certification 1Z0-854 certification 1Z0-854 1Z0-854 examen certification 1Z0-854
15.Given:
12. NumberFormat nf = NumberFormat.getInstance();
13. nf.setMaximumFractionDigits(4);
14. nf.setMinimumFractionDigits(2);
15. String a = nf.format(3.1415926);
16. String b = nf.format(2);
Which two statements are true about the result if the default locale is Locale.US? (Choose two.)
A. The value of a is 3.1415.
B. The value of a is 3.14.
C. The value of a is 3.141.
D. The value of b is 2.
E. The value of b is 2.0000.
F. The value of a is 3.1416.
G. The value of b is 2.00.
Answer: F,G
Oracle 1Z0-854 1Z0-854 examen 1Z0-854 1Z0-854 1Z0-854
16.Click the Exhibit button.
Which statement is true about the two classes?
A. Compilation of class B will fail. Compilation of class A will succeed.
B. Compilation of class A will fail. Compilation of class B will succeed.
C. Compilation of both classes will fail.
D. Compilation of both classes will succeed.
Answer: A
Oracle examen 1Z0-854 certification 1Z0-854 certification 1Z0-854 1Z0-854
17.Given:
11. class ClassA {}
12. class ClassB extends ClassA {}
13. class ClassC extends ClassA {}
and:
21. ClassA p0 = new ClassA();
22. ClassB p1 = new ClassB();
23. ClassC p2 = new ClassC();
24. ClassA p3 = new ClassB();
25. ClassA p4 = new ClassC();
Which three are valid? (Choose three.)
A. p2 = p4;
B. p2 = (ClassC)p1;
C. p0 = p1;
D. p2 = (ClassC)p4;
E. p1 = p2;
F. p1 = (ClassB)p3;
Answer: C,D,F
certification Oracle 1Z0-854 certification 1Z0-854 1Z0-854 examen certification 1Z0-854
18.Given this method in a class:
21. public String toString() {
22. StringBuffer buffer = new StringBuffer();
23. buffer.append('<');
24. buffer.append(this.name);
25. buffer.append('>');
NO.24 public Hello() {
NO.25 }
What is the result?
A. null
B. An exception is thrown at runtime.
C. Compilation fails because of an error in line 5.
D. Compilation fails because of an error in line 4.
E. Compilation fails because of an error in line 1.
F. test
Answer: F
Oracle 1Z0-854 certification 1Z0-854 1Z0-854 certification 1Z0-854
8.DRAG DROP
Click the Task button.
Answer:
NO.26 title += " World";
NO.27 }
and:
30. Hello c = new Hello(5);
31: System.out.println(c.title);
What is the result?
A. The code runs with no output.
B. Hello
C. Hello World 5
D. Compilation fails.
E. An exception is thrown at runtime.
F. Hello World
Answer: D
certification Oracle 1Z0-854 1Z0-854 examen 1Z0-854 examen
11.Given:
10. class Line {
11. public class Point { public int x,y;}
12. public Point getPoint() { return new Point(); }
13. }
14. class Triangle {
15. public Triangle() {
16. // insert code here
17. }
18. }
Which code, inserted at line 16, correctly retrieves a local instance of a Point object?
A. Point p = (new Line()).getPoint();
B. Line.Point p = Line.getPoint();
C. Point p = Line.getPoint();
D. Line.Point p = (new Line()).getPoint();
Answer: D
Oracle certification 1Z0-854 1Z0-854 1Z0-854 1Z0-854
12.Given:
11. // insert code here
12. private N min, max;
13. public N getMin() { return min; }
14. public N getMax() { return max; }
15. public void add(N added) {
16. if (min == null || added.doubleValue() < min.doubleValue())
17. min = added;
18. if (max == null || added.doubleValue() > max.doubleValue())
19. max = added;
20. }
21. }
Which two, inserted at line 11, will allow the code to compile? (Choose two.)
A. public class MinMax<?> {
B. public class MinMax<N extends Object> {
C. public class MinMax<N extends Integer> {
D. public class MinMax<? extends Object> {
E. public class MinMax<N extends Number> {
F. public class MinMax<? extends Number> {
Answer: C,E
Oracle examen 1Z0-854 1Z0-854 examen 1Z0-854
13.A developer is creating a class Book, that needs to access class Paper. The Paper class is deployed in
a JAR named myLib.jar.
Which three, taken independently, will allow the developer to use the Paper class while compiling the
Book class? (Choose three.)
A. The JAR file is located at $JAVA_HOME/jre/classes/myLib.jar.
B. The JAR file is located at /foo/myLib.jar and the Book class is compiled using javac -d
/foo/myLib.jar Book.java
C. The JAR file is located at /foo/myLib.jar and a classpath environment variable is set that
includes /foo/myLib.jar/Paper.class.
D. The JAR file is located at $JAVA_HOME/jre/lib/ext/myLib.jar..
E. The JAR file is located at /foo/myLib.jar and the Book class is compiled using javac -classpath
/foo/myLib.jar Book.java
F. The JAR file is located at /foo/myLib.jar and the Book class is compiled using javac -cp
/foo/myLib.jar/Paper Book.java.
G. The JAR file is located at /foo/myLib.jar and a classpath environment variable is set that includes
/foo/myLib.jar.
Answer: D,E,G
Oracle 1Z0-854 examen 1Z0-854 certification 1Z0-854 1Z0-854 examen
14.Given:
10. public class SuperCalc {
11. protected static int multiply(int a, int b) { return a * b;}
12. }
and:
20. public class SubCalc extends SuperCalc{
21. public static int multiply(int a, int b) {
Le test Certification Oracle 1Z0-854 est une chance précieuse à augmenter vos connaissances de technologie informatique dans l'industrie IT. Il attire beaucoup de professionls à participer ce test. Pass4Test peut vous offrir les outils de formation particuliers à propos de test Oracle 1Z0-854. Vous réaliserez plus tôt votre rêve avec la Q&A écrite par l'équipe professionnelle de Pass4Test. Pass4Test se contribue à vous donner un coup de main pour réussir le test Oracle 1Z0-854.
没有评论:
发表评论