1Z0-809在線題庫，Oracle 1Z0-809證照信息 & Java SE 8 Programmer II - Royalholidayclubbed

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Royalholidayclubbed的考試練習題和答案可以為一切參加IT行業相關認證考試的人提供一切所急需的資料。它能時時刻刻地提供你們想要的資料，購買我們所有的資料能保證你通過你的第一次Oracle 1z0-809在線題庫認證考試。我們都很清楚 Oracle 1z0-809在線題庫認證考試在IT行業中的地位是駐足輕重的地位，但關鍵的問題是能夠拿到Oracle 1z0-809在線題庫的認證證書不是那麼簡單的。這個考古題可以讓你更準確地瞭解考試的出題點，從而讓你更有目的地學習相關知識。另外，如果你實在沒有準備考試的時間，那麼你只需要記好這個考古題裏的試題和答案。 Oracle 1z0-809在線題庫認證證書可以加強你的就業前景，可以開發很多好的就業機會。

Java SE 1z0-809 這個考古題的高合格率已經被廣大考生證明了。

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通過 Oracle的1z0-809在線題庫的考試認證不僅僅是驗證你的技能，但也證明你的專業知識和你的證書，你的老闆沒有白白雇傭你，目前的IT行業需要一個可靠的 Oracle的1z0-809在線題庫的考試的來源，Royalholidayclubbed是個很好的選擇，1z0-809在線題庫的考試縮短在最短的時間內，這樣不會浪費你的錢和精力。還會讓你又一個美好的前程。

Oracle 1z0-809在線題庫 - 這樣討得上司的喜歡，還不如用實力說話。

在現在這個人才濟濟的社會裏，還是有很多行業是缺乏人才的，比如IT行業就相當缺乏技術性的人才。而Oracle 1z0-809在線題庫認證考試就是個檢驗IT技術的認證考試之一。Royalholidayclubbed是一個給你培訓Oracle 1z0-809在線題庫認證考試相關技術知識的網站。

這絕對是你成功的一個捷徑。它可以讓你充分地準備1z0-809在線題庫考試。

1z0-809 PDF DEMO:

QUESTION NO: 1
Given that course.txt is accessible and contains:
Course : : Java
and given the code fragment:
public static void main (String[ ] args) {
int i;
char c;
try (FileInputStream fis = new FileInputStream ("course.txt");
InputStreamReader isr = new InputStreamReader(fis);) {
while (isr.ready()) { //line n1
isr.skip(2);
i = isr.read ();
c = (char) i;
System.out.print(c);
}
} catch (Exception e) {
e.printStackTrace();
}
}
What is the result?
A. ueJa
B. The program prints nothing.
C. ur :: va
D. A compilation error occurs at line n1.
Answer: A

QUESTION NO: 2
Given the code fragments:
4. void doStuff() throws ArithmeticException, NumberFormatException, Exception {
5. if (Math.random() >-1 throw new Exception ("Try again");
6. }
and
24. try {
25. doStuff ( ):
26. } catch (ArithmeticException | NumberFormatException | Exception e) {
27. System.out.println (e.getMessage()); }
28. catch (Exception e) {
29. System.out.println (e.getMessage()); }
30. }
Which modification enables the code to print Try again?
A. Replace line 27 with:throw e;
B. Comment the lines 28, 29 and 30.
C. Replace line 26 with:} catch (ArithmeticException | NumberFormatException e) {
D. Replace line 26 with:} catch (Exception | ArithmeticException | NumberFormatException e) {
Answer: C

QUESTION NO: 3
Given the code fragments:
class Employee {
Optional<Address> address;
Employee (Optional<Address> address) {
this.address = address;
}
public Optional<Address> getAddress() { return address; }
}
class Address {
String city = "New York";
public String getCity { return city: }
public String toString() {
return city;
}
}
and
Address address = null;
Optional<Address> addrs1 = Optional.ofNullable (address);
Employee e1 = new Employee (addrs1);
String eAddress = (addrs1.isPresent()) ? addrs1.get().getCity() : "City Not available"; What is the result?
A. City Not available
B. null
C. New York
D. A NoSuchElementException is thrown at run time.
Answer: A

QUESTION NO: 4
Given that /green.txt and /colors/yellow.txt are accessible, and the code fragment:
Path source = Paths.get("/green.txt);
Path target = Paths.get("/colors/yellow.txt);
Files.move(source, target, StandardCopyOption.ATOMIC_MOVE);
Files.delete(source);
Which statement is true?
A. A FileAlreadyExistsException is thrown at runtime.
B. The file green.txt is moved to the /colors directory.
C. The yellow.txt file content is replaced by the green.txt file content and an exception is thrown.
D. The green.txt file content is replaced by the yellow.txt file content and the yellow.txt file is deleted.
Answer: A

QUESTION NO: 5
Given:
class Book {
int id;
String name;
public Book (int id, String name) {
this.id = id;
this.name = name;
}
public boolean equals (Object obj) { //line n1
boolean output = false;
Book b = (Book) obj;
if (this.id = = b.id) {
output = true;
}
return output;
}
}
and the code fragment:
Book b1 = new Book (101, "Java Programing");
Book b2 = new Book (102, "Java Programing");
System.out.println (b1.equals(b2)); //line n2
Which statement is true?
A. The program prints true.
B. A compilation error occurs. To ensure successful compilation, replace line n2 with:System.out.println (b1.equals((Object) b2));
C. A compilation error occurs. To ensure successful compilation, replace line n1 with:boolean equals
(Book obj) {
D. The program prints false.
Answer: D

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Updated: May 28, 2022

by RHC.

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