Dépenser assez de temps et d'argent pour réussir le test Oracle 1Z0-854 ne peut pas vous assurer à passer le test Oracle 1Z0-854 sans aucune doute. Choisissez le Pass4Test, moins d'argent coûtés mais plus sûr pour le succès de test. Dans cette société, le temps est tellement précieux que vous devez choisir un bon site à vous aider. Choisir le Pass4Test symbole le succès dans le future.
Si vous traviallez dur encore pour préparer le test de Oracle 1Z0-854 et réaliser votre but plus vite, Pass4Test peut vous donner une solution plus pratique. Choisir la Q&As de Pass4Test qui vous assure que c'est pas un rêve à réussir le test Oracle 1Z0-854.
Le test Oracle 1Z0-854 est populaire dans l'Industrie IT. Il y a beaucoup de professionnels IT veulent ce passport de IT. Votre vie et salaire sera améliorée avec ce Certificat. Vous aurez une meilleure assurance.
En quelques années, le test de certification de Oracle 1Z0-854 faisait un grand impact sur la vie quotidienne pour pas mal de gens. Voilà le problème, comme on peut réussir facilement le test de Oracle 1Z0-854? Notre Pass4Test peut vous aider à tout moment à résourdre ce problème rapidement. Pass4Test peut vous offrir une bonne formation particulière à propos du test de certification 1Z0-854. Notre outil de test formation est apporté par les IT experts. Chez Pass4Test, vous pouvez toujours trouver une formations à propos du test Certification 1Z0-854, plus nouvelle et plus proche d'un test réel. Tu choisis le Pass4Test aujourd'hui, tu choisis le succès de test Certification demain.
Le produit de Pass4Test est réputée par une bonne qualité et fiabilité. Vous pouvez télécharger le démo grantuit pour prendre un essai, nons avons la confiance que vous seriez satisfait. Vous n'aurez plus de raison à s'hésiter en face d'un aussi bon produit. Ajoutez notre Q&A au panier, vous aurez une meilleure préparation avant le test.
Il demande les connaissances professionnelles pour passer le test Oracle 1Z0-854. Si vous manquez encore ces connaissances, vous avez besoin de Pass4Test comme une resourece de ces connaissances essentielles pour le test. Pass4Test et ses experts peuvent vous aider à renfocer ces connaissances et vous offrir les Q&As. Pass4Test fais tous efforts à vous aider à se renforcer les connaissances professionnelles et à passer le test. Choisir le Pass4Test peut non seulement à obtenir le Certificat Oracle 1Z0-854, et aussi vous offrir le service de la mise à jour gratuite pendant un an. Si malheureusement, vous ratez le test, votre argent sera 100% rendu.
Obtenez la Q&A de test Oracle 1Z0-854 de Pass4Test plus tôt, vous pouvez réussir le test Certification Oracle 1Z0-854 plus tôt.
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 return buffer.toString();
NO.2 }
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 1Z0-854 examen 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 1Z0-854 1Z0-854 1Z0-854 1Z0-854
NO.3 }
NO.4 return c;
NO.5 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 1Z0-854 1Z0-854 1Z0-854
NO.6 this.value = value;
NO.7 }
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 examen 1Z0-854 1Z0-854
8.DRAG DROP
Click the Task button.
Answer:
NO.8 public Hello(int value) {
NO.9 title = "Hello";
NO.10 }
NO.11 DRAG DROP
Click the Task button. ?
Answer:
NO.12 }
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
certification Oracle 1Z0-854 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
certification Oracle certification 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 1Z0-854 examen 1Z0-854 certification 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
Oracle certification 1Z0-854 certification 1Z0-854 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.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 examen 1Z0-854 1Z0-854 certification 1Z0-854
NO.14 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 1Z0-854 examen 1Z0-854 examen certification 1Z0-854 1Z0-854
NO.15 public Hello() {
NO.16 }
NO.17 Hello();
NO.18 title += " World";
NO.19 DRAG DROP
Click the Task button.
Answer:
NO.20 int c = super.multiply(a, b);
NO.21 int value;
NO.22 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.23 }
NO.24 }
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
certification Oracle 1Z0-854 1Z0-854 examen 1Z0-854 examen
10.Given:
10. public class Hello {
11: String title;
NO.25 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.26 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
Oracle examen 1Z0-854 examen 1Z0-854 1Z0-854 examen
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
Oracle 1Z0-854 examen 1Z0-854 1Z0-854
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 1Z0-854 1Z0-854 examen 1Z0-854 certification 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 examen certification 1Z0-854 certification 1Z0-854 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 1Z0-854
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) {
Maintenant, beaucoup de professionnels IT prennent un même point de vue que le test Oracle 1Z0-854 est le tremplin à surmonter la pointe de l'Industrie IT. Beaucoup de professionnels IT mettent les yeux au test Certification Oracle 1Z0-854.
没有评论:
发表评论