ITExamDump의 Oracle인증 1Z0-804덤프의 무료샘플을 이미 체험해보셨죠? ITExamDump의 Oracle인증 1Z0-804덤프에 단번에 신뢰가 생겨 남은 문제도 공부해보고 싶지 않나요? ITExamDump는 고객님들의 시험부담을 덜어드리기 위해 가벼운 가격으로 덤프를 제공해드립니다. ITExamDump의 Oracle인증 1Z0-804로 시험패스하다 더욱 넓고 좋은곳으로 고고싱 하세요.
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Oracle 1Z0-804인증시험도 어려울 뿐만 아니라 신청 또한 어렵습니다.Oracle 1Z0-804시험은 IT업계에서도 권위가 있고 직위가 있으신 분들이 응시할 수 있는 시험이라고 알고 있습니다. 우리 ITExamDump에서는Oracle 1Z0-804관련 학습가이드를 제동합니다. ITExamDump 는 우리만의IT전문가들이 만들어낸Oracle 1Z0-804관련 최신, 최고의 자료와 학습가이드를 준비하고 있습니다. 여러분의 편리하게Oracle 1Z0-804응시하는데 많은 도움이 될 것입니다.
시험 번호/코드: 1Z0-804
시험 이름: Oracle (Java SE 7 Programmer II Exam)
우리ITExamDump가 제공하는 최신, 최고의Oracle 1Z0-804시험관련 자료를 선택함으로 여러분은 이미 시험패스성공이라고 보실수 있습니다.
1Z0-804 덤프무료샘플다운로드하기: http://www.itexamdump.com/1Z0-804.html
NO.1 Given:
class Deeper {
public Number getDepth() {
return 10;
}
}
Which two classes correctly override the getDepth method?
A. public class deep extends Deeper {
protected integer getDepth(){
return 5;
}
}
B. public class deep extends Deeper {
public double getDepth() {
return"5";
}
}
C. public class deep extends Deeper {
public String getDepth () {
}
}
D. public class deep extends Deeper {
public Long getDepth (int d) {
return 5L;
}
}
E. public class deep extends Deeper {
public short getDepth () {
return 5;
}
}
Answer: A,E
Oracle dump 1Z0-804 1Z0-804 1Z0-804 1Z0-804인증 1Z0-804시험문제
NO.2 Given the fragment:
public class CustomerApplication {
public static void main (String args[]) {
CustomerDAO custDao= new CustomerDAOMemoryImpl(); // Line 3
// o t he r m e t hod
}
}
Which two valid alternatives to line 3 would decouple this application from a specific
implementation of CustomerDAO?
A. CustomerDAO custDao = CustomerDAO();
B. CustomerDAO custDao = (CustomerDAO) new Object ();
C. CustomerDAO custDao = CustomerDAO.getInstance();
D. CustomerDAO custDao = (CustomerDAO) new CustomerDAOmemoryImp1();
E. CustomerDAO custDao = customerDAOFactory.getInstance();
Answer: B,E
Oracle pdf 1Z0-804 1Z0-804 dump 1Z0-804덤프 1Z0-804자료
NO.3 ITEM Table
* ID, INTEGER: PK
* DESCRIP, VARCHAR(100)
* PRICE, REAL
* QUALITY, INTEGER
And given the code fragment (assuming that the SQL query is valid):
try {
String query = "SELECT * FROM Item WHERE ID=110";
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(query);
while (rs.next ()) {
System.out.println("ID: " + rs.getInt("Id"));
System.out.println("Description: " + rs.getString("Descrip"));
System.out.println("Price: " + rs.getDouble("Price"));
System.out.println("Quantity: " + rs.getInt("Quantity"));
}
} catch (SQLException se) {
System.out.println("Error");
}
What is the result of compiling and executing this code?
A. An exception is thrown at runtime
B. Compile fails
C. The code prints Error
D. The code prints information about Item 110
Answer: A
Oracle인증 1Z0-804기출문제 1Z0-804 1Z0-804 1Z0-804 dumps
NO.4 Given the incomplete pseudo-code for a fork/join framework application:
submit(Data) {
if(Data.size < SMALL_ENOUGH) {
_________________(Data); // line x
}
else {
List<Data> x = _________________(Data); // line Y
for(Data d: x
______________(d); // line z
}
}
And given the missing methods:
process, submit, and splitInHalf
Which three insertions properly complete the pseudo-code?
A. Insert submit at line X.
B. Insert splitInHalf at line X.
C. Insert process at line X.
D. Insert process at line Y.
E. Insert splitInHalf at line Y.
F. Insert process at line Z.
G. Insert submit at line Z.
Answer: C,E,G
Oracle 1Z0-804 1Z0-804 1Z0-804 1Z0-804기출문제
NO.5 Give:
Class Employee {
public int checkEmail() {/* . . . */}
public void sendEmail (String email) {/* . . . */}
public Boolean validDateEmail(){/* . . . */}
public void printLetter (String letter) {/* . . . */}
}
Which is correct?
A. Employee takes advantage of composition.
B. Employee "has-an" Email.
C. Employee "is-a" LetterPrinter.
D. Employee has low cohesion.
Answer: D
Oracle최신덤프 1Z0-804자격증 1Z0-804 pdf 1Z0-804자료 1Z0-804 pdf
NO.6 Given the code fragment:
DataFormat df;
Which statement defines a new Dateformat object that displays the default date format for the UK
Locale?
A. df = DateFormat.getdatDataInstance (DateFormat.DEFAULT, Locale (UK));
B. df = DateFormat.getdatDataInstance (DateFormat.DEFAULT, UK);
C. df = DateFormat.getdatDataInstance (DateFormat.DEFAULT, Locale.UK);
D. df = new DateFormat.getdatDataInstance (DateFormat.DEFAULT, Locale.UK);
E. df = new DateFormat.getdatDataInstance (DateFormat.DEFAULT, Locale (UK));
Answer: C
Oracle자격증 1Z0-804 1Z0-804자료
NO.7 Which two demonstrate the valid usage of the keyword synchronized?
A. interface ThreadSafe {
synchronized void doIt();
}
B. abstract class ThreadSafe {
synchronized abstract void doIt();
}
C. class ThreadSafe {
synchronized static void soIt () {}
}
D. enum ThreadSafe {
ONE, TWO, Three;
Synchronized final void doIt () {}
}
Answer: C
Oracle 1Z0-804 1Z0-804
NO.8 Given the existing destination file, a source file only 1000 bytes long, and the code fragment:
public void process (String source, String destination) {
try (InputStream fis = new FileInputStream(source);
OutputStream fos = new FileOutputStream(destination)
) {
byte [] buff = new byte[2014];
int i;
while ((i = fis.read(buff)) != -1) {
fos.write(buff,0,i); // line ***
}
} catch (IOException e) {
System.out.println(e.getClass());
}
}
What is the result?
A. Overrides the content of the destination file with the source file content
B. Appends the content of the source file to the destination file after a new line
C. Appends the content of the source file to the destination file without a break in the flow
D. Throws a runtime exception at line***
Answer: A
Oracle 1Z0-804 1Z0-804 1Z0-804
NO.9 Which method would you supply to a class implementing the Callable interface?
A. callable ()
B. executable ()
C. call ()
D. run ()
E. start ()
Answer: C
Oracle시험문제 1Z0-804시험문제 1Z0-804 1Z0-804 1Z0-804
NO.10 Given the code fragment:
public class App {
public static void main (String [] args){
Path path = Paths.get("C:\\education\\institute\\student\\report.txt");
System.out.println("get.Name(0): %s", path.getName(0));
System.out.println ("subpath(0, 2): %s", path.subpath (0, 2));}
}
What is the result?
A. getName (0): C:\
subpath (0, 2): C:\education\report.txt
B. getName(0): C:\
subpth(0, 2): C:\education
C. getName(0): education
subpath (0, 2): education\institute
D. getName(0): education
subpath(0, 2): education\institute\student
E. getName(0): report.txt
subpath(0, 2): insritute\student
Answer: C
Oracle 1Z0-804 1Z0-804 1Z0-804
Explanation: Example:
Path path = Paths.get("C:\\home\\joe\\foo");
getName(0)
-> home
subpath(0,2)
Reference: The Java Tutorial, Path Operations
NO.11 To provide meaningful output for:
System.out.print( new Item ()):
A method with which signature should be added to the Item class?
A. public String asString()
B. public Object asString()
C. public Item asString()
D. public String toString()
E. public object toString()
F. public Item toString()
Answer: D
Oracle 1Z0-804 1Z0-804 1Z0-804 pdf 1Z0-804자격증
NO.12 Given:
public class DoubleThread {
public static void main(String[] args) {
Thread t1 = new Thread() {
public void run() {
System.out.print("Greeting");
}
};
Thread t2 = new Thread(t1); // Line 9
t2.run();
}
}
Which two are true?
A. A runtime exception is thrown on line 9.
B. No output is produced.
C. Greeting is printed once.
D. Greeting is printed twice.
E. No new threads of execution are started within the main method.
F. One new thread of execution is started within the main method.
G. Two new threads of execution are started within the main method.
Answer: C,E
Oracle 1Z0-804 1Z0-804
NO.13 Given a language code of fr and a country code of FR, which file name represents a resource
bundle file name that is not the default?
A. MessageBundle_fr_FR.properties
B. MessageBundle_fr_FR.profile
C. MessageBundle_fr_FR.xinl
D. MessageBundle__fr__FR.Java
E. MessageBundle__fr__FR.Locale
Answer: A
Oracle 1Z0-804 1Z0-804시험문제 1Z0-804인증 1Z0-804인증
NO.14 Given:
import java.util.*;
public class AccessTest {
public static void main(String[] args) {
Thread t1 = new Thread(new WorkerThread());
Thread t2 = new Thread(new WorkerThread());
t1.start(); t2.start; // line1
}
}
class WorkPool {
static ArrayList<Integer> list = new ArrayList<>(); // line2
public static void addItem() { // line3
list.add(1); // Line4
}
}
class WorkerThread implements Runnable {
static Object bar = new Object ();
public void run() { //line5
for (int i=0; i<5000;i++) WorkPool.addItem(); // line6
}
}
Which of the four are valid modifications to synchronize access to the valid list between threads t1
and t2?
A. Replace line 1 with:
Synchronized (t2) (t1.start();) synchronized(t1) (t2.start();)
B. Replace Line 2 with:
static CopyWriteArrayList<Integer> list = new CopyWriteArrayList<>();
C. Replace line 3 with:
synchronized public static void addItem () {
D. Replace line 4 with:
synchronized (list) (list.add(1);)
E. Replace line 5 with:
Synchronized public void run () {
F. replace line 6 with:
Synchronized (this) {for (in i = 0, i<5000, i++) WorkPool.addItem(); }
G. Replace line 6 with:
synchronized (bar) {for (int i= 0; i<5000; i++) WorkPool.addItem(); }
Answer: F
Oracle 1Z0-804 1Z0-804시험문제 1Z0-804 1Z0-804 1Z0-804
NO.15 Given the code fragment:
public class DisplaValues {
public void printNums (int [] nums){
for (int number: nums) {
System.err.println(number);
}
}
}
Assume the method printNums is passed a valid array containing data. Why is this method not
producing output on the console?
A. There is a compilation error.
B. There is a runtime exception.
C. The variable number is not initialized.
D. Standard error is mapped to another destination.
Answer: D
Oracle 1Z0-804 dump 1Z0-804자격증
NO.16 Which two codes correctly represent a standard language locale code?
A. ES
B. FR
C. U8
D. Es
E. fr
F. u8
Answer: A,D
Oracle 1Z0-804 1Z0-804 1Z0-804덤프 1Z0-804
NO.17 Given:
import java.io.IOException;
import java.io.file.Path;
import java.io.file.Paths;
public class Path12 {
public static void main(String s[]) throws IOException {
Path path = Paths.get("\\sales\\quarter\\..\\qtrlreport.txt");
path.relativize(Paths.get("\\sales\\annualreport.txt"));
if(path.endsWith("annualreport.txt")) {
System.out.println(true);
} else {
System.out.println(false);
}
System.out.println(path);
}
}
What is the result?
A. false
\sales\quarter\ . . \qtrlreport.txt
B. false
\quarter\ . . \qtrlreport.txt
C. true
. . \ . . \ . . \ annualreport.txt
D. true
\ . . \ . . \annualreport.txt
Answer: A
Oracle덤프 1Z0-804인증 1Z0-804 1Z0-804기출문제 1Z0-804덤프 1Z0-804 dumps
NO.18 Which code fragment demonstrates the proper way to handle JDBC resources?
A. Try {
ResultSet rs = stmt.executableQuery (query);
statement stmt = con.createStatement();
while (rs.next()) (/* . . . */)
} catch (SQLException e) {}
B. Try {statement stmt = con.createStatement();
ResultSet rs = stmt.executableQuery (query);
while (rs.next()) (/* . . . */)
} catch (SQLException e) {}
C. Try {
statement stmt = con.createStatement();
ResultSet rs = stmt.executableQuery (query);
while (rs.next()) (/* . . . */)
} finally {
rs.close();
stmt.close();
}
D. Try {ResultSet rs = stmt.executableQuery (query);
statement stmt = con.createStatement();
while (rs.next()) (/* . . . */)
} finally {
rs.close();
stmt.close();
}
Answer: C
Oracle 1Z0-804 1Z0-804덤프
NO.19 Sam has designed an application. It segregates tasks that are critical and executed frequently
from tasks that are non critical and executed less frequently. He has prioritized these tasks based
on their criticality and frequency of execution. After close scrutiny, he finds that the tasks designed
to be non critical are rarely getting executed.
From what kind of problem is the application suffering?
A. race condition
B. starvation
C. deadlock
D. livelock
Answer: C
Oracle 1Z0-804시험문제 1Z0-804 1Z0-804인증
NO.20 Given this error message when running your application:
Exception in thread "main" java.util.MissingResourceException: Can't find bundle for base name
MessageBundle, locale
And given that the MessageBundle.properties file has been created, exists on your disk, and is
properly formatted.
What is the cause of the error message?
A. The file is not in the environment path.
B. The file is not in the classpath.
C. The file is not in the javapath.
D. You cannot use a file to store a ResourceBundle.
Answer: D
Oracle 1Z0-804기출문제 1Z0-804자료 1Z0-804자료 1Z0-804
ITExamDump의 완벽한 Oracle인증 1Z0-804덤프는 고객님이Oracle인증 1Z0-804시험을 패스하는 지름길입니다. 시간과 돈을 적게 들이는 반면 효과는 십점만점에 십점입니다. ITExamDump의 Oracle인증 1Z0-804덤프를 선택하시면 고객님께서 원하시는 시험점수를 받아 자격증을 쉽게 취득할수 있습니다.
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