최신 1Z0-819 무료덤프 - Oracle Java SE 11 Developer

문제1

Given the contents:
MessageBundle.properties file:
message=Hello
MessageBundle_en.properties file:
message=Hello (en)
MessageBundle_US.properties file:
message=Hello (US)
MessageBundle_en_US.properties file:
message=Hello (en_US)
MessageBundle_fr_FR.properties file:
message=Bonjour
and the code fragment:
Locale.setDefault(Locale.FRANCE);
Locale currentLocale = new Locale.Builder().setLanguage("en").build();
ResourceBundle messages = ResourceBundle.getBundle("MessageBundle", currentLocale); System.out. println(messages.getString("message")); Which file will display the content on executing the code fragment?

A. MessageBundle_en.properties

B. MessageBundle.properties

C. MessageBundle_fr_FR.properties

D. MessageBundle_US.properties

E. MessageBundle_en_US.properties

정답: C

문제2

Given:

What is the result?

A. java.lang.ArrayIndexOutOfBoundsException thrown

B. [0,0] = Red[0,1] = White[1,0] = Black[1,1] = Blue[2,0] = Yellow[2,1] = Green[3,0] = Violet

C. [0,0] = Red[1,0] = Black[2,0] = Blue

D. [0,0] = Red[0,1] = White[1,0] = Black[2,0] = Blue[2,1] = Yellow[2,2] = Green[2,3] = Violet

정답: D

설명: (DumpTOP 회원만 볼 수 있음)

문제3

Given:

Which two interfaces can be used in lambda expressions? (Choose two.)

A. MyInterface1

B. MyInterface2

C. MyInterface3

D. MyInterface5

E. MyInterface4

정답: B,D

문제4

Given the code fragment:
Which two code fragments, independently, replace line 1 to implement the equivalent reduce operation?

A.

B.

C.

D.

E.

정답: C,D

문제5

Given:

What is the result?

A. 6=(x+y)=6

B. 6=(x+y)=42

C. 42=(x+y)=42

D. 42=(x+y)=6

E. An exception is thrown at runtime.

정답: B

설명: (DumpTOP 회원만 볼 수 있음)

문제6

Given:

and

Which two method definitions at line n1 in the Bar class compile? (Choose two.)

A. public ArrayList<Number> foo(Set<CharSequence> m) {...}

B. public List<Object> foo(Set<CharSequence> m) {...}

C. public List<Integer> foo(TreeSet<String> m) {...}

D. public ArrayList<Integer> foo(Set<String> m) {...}

E. public List<Integer> foo(Set<CharSequence> m) {...}

F. public List<Number> foo(Set<String> m) {...}

정답: A,C

문제7

Given:

You want to examine the items list it contains an item for which the variable count is below zero.
Which code fragment at line 1 accomplish this?

A. If (items.stream () .anymatch (i -> count < 0) < 0) ) {

B. If (items.stream () .filter (i -> count < 0) . findFirst () ) {

C. If (items.stream () .allmatch (i -> count < 0) < 0) ) {

D. If (items.stream () .filter (i -> count < 0) . findAny () ) {

정답: B

문제8

Given:

You want to use the myResource class in a try-with-resources statement. Which change will accomplish this?

A. Extend AutoCloseable and override the close method.

B. Implement AutoCloseable and override the autoClose method.

C. Implement AutoCloseable and override the close method.

D. Extend AutoCloseable and override the autoClose method.

정답: C

문제9

Which two safely validate inputs? (Choose two.)

A. Use trusted domain-specific libraries to validate inputs.

B. Assume inputs have already been validated.

C. Modify the input values, as needed, to pass validation.

D. Delegate numeric range checking of values to the database.

E. Accept only valid characters and input values.

정답: D,E

문제10

Given:

Which action must you perform to print Verified?

A. Make the verify method public and invoke it from the main method.

B. Invoke the verify method from the place method.

C. Invoke the verify method from the main method.

D. Change the declaration of the order variable to orderService order = New order(); and Invoke the verify method from the main method.

정답: B

문제11

Which is the correct order of possible statements in the structure of a Java class file?

A. import, class, package

B. package, class, import

C. package, import, class

D. class, package, import

E. import, package, class

정답: C

문제12

Given:

What is the result?

A. 385

B. 80

C. 25

D. The compilation fails.

E. 3

정답: A

문제13

Given:

What is the output?
A)

B)

C)

D)

A. option A

B. option C

C. option D

D. option B

정답: C

최신 1Z0-819 무료덤프 - Oracle Java SE 11 Developer

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