C'est pas facile à passer le test Certification Oracle 1Z0-854, choisir une bonne formation est le premier bas de réussir, donc choisir une bonne resource des informations de test Oracle 1Z0-854 est l'assurance du succès. Pass4Test est une assurance comme ça. Une fois que vous choisissez le test Oracle 1Z0-854, vous allez passer le test Oracle 1Z0-854 avec succès, de plus, un an de service en ligne après vendre est gratuit pour vous.
L'équipe de Pass4Test se composant des experts dans le domaine IT. Toutes les Q&As sont examinées par nos experts. Les Q&As offertes par Pass4Test sont réputées pour sa grande couverture ( presque 100%) et sa haute précision. Vous pouvez trouver pas mal de sites similaires que Pass4Test, ces sites peut-être peuvent vous offrir aussi les guides d'études ou les services en ligne, mais on doit admettre que Pass4Test peut être la tête de ces nombreux sites. La mise à jour, la grande couverture des questions, la haute précision des réponses nous permettent à augmenter le taux à réussir le test Certification Oracle 1Z0-854. Tous les points mentionnés ci-dessus seront une assurance 100% pour votre réussite de test Certification Oracle 1Z0-854.
Choisissez le Pass4Test, choisissez le succès. Le produit offert par Pass4Test vous permet à réussir le test Oracle 1Z0-854. C'est necessaire de prendre un test simulation avant participer le test réel. C'est une façon bien effective. Choisir Pass4Test vous permet à réussir 100% le test.
Code d'Examen: 1Z0-854
Nom d'Examen: Oracle (Java Standard Edition 5 Programmer Certified Professional Upgrade Exam)
Questions et réponses: 138 Q&As
Le test de Certification Oracle 1Z0-854 devient de plus en plus chaud dans l'Industrie IT. En fait, ce test demande beaucoup de travaux pour passer. Généralement, les gens doivent travailler très dur pour réussir.
Le Certificat Oracle 1Z0-854 est un passport rêvé par beaucoup de professionnels IT. Le test Oracle 1Z0-854 est une bonne examination pour les connaissances et techniques professionnelles. Il demande beaucoup de travaux et efforts pour passer le test Oracle 1Z0-854. Pass4Test est le site qui peut vous aider à économiser le temps et l'effort pour réussir le test Oracle 1Z0-854 avec plus de possibilités. Si vous êtes intéressé par Pass4Test, vous pouvez télécharger la partie gratuite de Q&A Oracle 1Z0-854 pour prendre un essai.
Le temps est tellement précieux dans cette société que une bonn façon de se former avant le test Oracle 1Z0-854 est très important. Pass4Test fait tous efforts à assurer tous les candidats à réussir le test. Aussi, un an de mise à jour est gratuite pour vous. Si vous ne passez pas le test, votre argent sera tout rendu.
1Z0-854 Démo gratuit à télécharger: http://www.pass4test.fr/1Z0-854.html
NO.1 int c = super.multiply(a, b);
NO.2 }
NO.3 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 examen 1Z0-854 certification 1Z0-854
NO.4 DRAG DROP
Click the Task button. ?
Answer:
NO.5 DRAG DROP
Click the Task button.
Answer:
NO.6 }
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
certification Oracle 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 examen 1Z0-854 certification 1Z0-854
NO.7 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
certification Oracle 1Z0-854 certification 1Z0-854
NO.8 }
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 certification 1Z0-854 1Z0-854 examen 1Z0-854 examen 1Z0-854 examen
8.DRAG DROP
Click the Task button.
Answer:
NO.9 }
NO.10 title += " World";
NO.11 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 examen 1Z0-854
NO.12 public Hello() {
NO.13 }
NO.14 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.15 public Hello(int value) {
NO.16 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
certification Oracle 1Z0-854 1Z0-854 examen certification 1Z0-854 1Z0-854
NO.17 }
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 certification 1Z0-854 1Z0-854 1Z0-854 1Z0-854 examen
10.Given:
10. public class Hello {
11: String title;
NO.18 }
NO.19 }
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 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 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
certification Oracle 1Z0-854 1Z0-854 examen 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 examen certification 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) {
NO.20 this.value = value;
NO.21 title = "Hello";
NO.22 }
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 1Z0-854 examen 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 1Z0-854 certification 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 1Z0-854 certification 1Z0-854 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
Oracle 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.23 Hello();
NO.24 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.25 return buffer.toString();
NO.26 int value;
NO.27 return c;
Pass4Test a capacité d'économiser vos temps et de vous faire plus confiant à réussir le test. Vous pouvez télécharger le démo Oracle 1Z0-854 gratuit à connaître mieux la bonne fiabilité de Pass4Test. Nous nous font toujours confiant sur nos produits, et vous aussi dans un temps proche. La réussite de test Oracle 1Z0-854 n'est pas loin de vous une fois que vous choisissez le produit de Pass4Test. C'est un choix élégant pour vous faciliter à réussir le test Oracle 1Z0-854.
没有评论:
发表评论