ITExamDump의Oracle인증 1Z0-854덤프는 인터넷에서 검색되는Oracle인증 1Z0-854시험공부자료중 가장 출중한 시험준비 자료입니다. Oracle인증 1Z0-854덤프를 공부하면 시험패스는 물론이고 IT지식을 더 많이 쌓을수 있어 일거량득입니다.자격증을 취득하여 자신있게 승진하여 연봉협상하세요.
우리ITExamDump의 덤프는 여러분이Oracle 1Z0-854인증시험응시에 도움이 되시라고 제공되는 것입니다, 우라ITExamDump에서 제공되는 학습가이드에는Oracle 1Z0-854인증시험관연 정보기술로 여러분이 이 분야의 지식 장악에 많은 도움이 될 것이며 또한 아주 정확한Oracle 1Z0-854시험문제와 답으로 여러분은 한번에 안전하게 시험을 패스하실 수 있습니다,Oracle 1Z0-854인증시험을 아주 높은 점수로 패스할 것을 보장해 드립니다,
시험 번호/코드: 1Z0-854
시험 이름: Oracle (Java Standard Edition 5 Programmer Certified Professional Upgrade Exam)
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Q&A: 138 문항
업데이트: 2013-12-15
IT인증자격증을 취득하는 것은 IT업계에서 자신의 경쟁율을 높이는 유력한 수단입니다. 경쟁에서 밀리지 않으려면 자격증을 많이 취득하는 편이 안전합니다.하지만 IT자격증취득은 생각보다 많이 어려운 일입니다. Oracle인증 1Z0-854시험은 인기자격증을 취득하는데 필요한 시험과목입니다. ITExamDump는 여러분이 자격증을 취득하는 길에서의 없어서는 안될 동반자입니다. ITExamDump의Oracle인증 1Z0-854덤프로 자격증을 편하게 취득하는게 어떨가요?
우선 우리ITExamDump 사이트에서Oracle 1Z0-854관련자료의 일부 문제와 답 등 샘플을 제공함으로 여러분은 무료로 다운받아 체험해보실 수 있습니다.체험 후 우리의ITExamDump에 신뢰감을 느끼게 됩니다. ITExamDump에서 제공하는Oracle 1Z0-854덤프로 시험 준비하시면 편안하게 시험을 패스하실 수 있습니다.
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NO.1 }
NO.2 }
NO.3 }
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 1Z0-854최신덤프 1Z0-854시험문제 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
Oracle자격증 1Z0-854 1Z0-854인증 1Z0-854 1Z0-854
NO.4 }
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 1Z0-854시험문제 1Z0-854시험문제 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 dump 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 1Z0-854 1Z0-854인증 1Z0-854 dump 1Z0-854 dumps
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 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.5 }
NO.6 return buffer.toString();
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 1Z0-854기출문제 1Z0-854자격증 1Z0-854자격증
8.DRAG DROP
Click the Task button.
Answer:
NO.8 title += " World";
NO.9 return c;
NO.10 int c = super.multiply(a, b);
NO.11 int value;
NO.12 title = "Hello";
NO.13 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
Oracle최신덤프 1Z0-854 1Z0-854 dump 1Z0-854
NO.14 DRAG DROP
Click the Task button. ?
Answer:
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 public Hello() {
NO.17 public Hello(int value) {
NO.18 DRAG DROP
Click the Task button.
Answer:
NO.19 }
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 1Z0-854 1Z0-854자격증
10.Given:
10. public class Hello {
11: String title;
NO.20 Hello();
NO.21 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
Oracle인증 1Z0-854 dump 1Z0-854 1Z0-854 1Z0-854인증
NO.22 }
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 1Z0-854 1Z0-854최신덤프 1Z0-854 1Z0-854덤프
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 1Z0-854 pdf
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 dump 1Z0-854시험문제
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 1Z0-854덤프 1Z0-854 1Z0-854시험문제
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 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 dumps 1Z0-854 1Z0-854최신덤프 1Z0-854자료
NO.25 this.value = value;
NO.26 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.27 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 1Z0-854 1Z0-854
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