Oracle Java SE 11 Programmer II - 1Z1-816 FREE EXAM DUMPS QUESTIONS & ANSWERS]

Question 1

Which two safely validate inputs? (Choose two.)

A. Delegate numeric range checking of values to the database. B. Assume inputs have already been validated. C. Accept only valid characters and input values. D. Modify the input values, as needed, to pass validation. E. Use trusted domain-specific libraries to validate inputs.

Discussion 0

Correct Answer: A,C Vote an answer

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Question 2

Examine these module declarations:

Which two statements are correct? (Choose two.)

A. The Consumer module should require the ServiceProvider module. B. The ServiceProvider module should export the com.myimpl package. C. The ServiceProvider module is the only module that, at run time, can provide the com.example.api API. D. The ServiceProvider module does not know the identity of a module (such as Consumer) that uses the com.example.api API. E. The placement of the com.example.api API in a separate module, ServiceAPI, makes it easy to install multiple provider modules.

Discussion 0

Correct Answer: A,C Vote an answer

Question 3

Given:

What code must you insert on Line 1 to enable the code to print Hello world?

A. Hello.Greeting myG = new Hello.Greeting() myG.sayHi(); B. Hello myH = new Hello(); Greeting myG = new Greeting(); myG.sayHi (); C. Hello myH = new Hello();
Hello.Greeting myG = myH.new Hello.Greeting();
myG.sayHi(); D. Hello myH = new Hello();
Hello.Greeting myG = myH.new Greeting();
myG.sayHi();

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Correct Answer: D Vote an answer

Question 4

Given:
var data = new ArrayList<>();
data.add("Peter");
data.add(30);
data.add("Market Road");
data.set(1, 25);
data.remove(2);
data.set(3, 1000L);
System.out.print(data);
What is the output?

A. An exception is thrown at run time. B. [Market Road, 1000] C. [Peter, 25, null, 1000] D. [Peter, 30, Market Road]

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Correct Answer: A Vote an answer

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Question 5

Given:

Which two are correct? (Choose two.)

A. Replacing forEach() with forEachOrdered(), the program prints 1 2 3 4 5. B. Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5, but the order is unpredictable. C. The output will be exactly 2 1 3 4 5. D. The program prints 1 4 2 3, but the order is unpredictable. E. Replacing forEach() with forEachOrdered(), the program prints 2 1 3 4 5.

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Correct Answer: A,D Vote an answer

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Question 6

Given:

Which is true?

A. System.in is the standard input stream. The stream is already open. B. System.out is the standard output stream. The stream is open only when System.out is called. C. System.in cannot reassign the other stream. D. System.out is an instance of java.io.OutputStream by default.

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Correct Answer: A Vote an answer

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Question 7

Given:
LocalDate d1 = LocalDate.of(1997,2,7);
DateTimeFormatter dtf =
DateTimeFormatter.ofPattern( /*insert code here*/ );
System.out.println(dtf.format (d1));
Which pattern formats the date as Friday 7th of February 1997?

A. "eeee dd+"th of"+ MMM yyyy" B. "eeee dd'th of' MMM yyyy" C. "eeee d+"th of"+ MMMM yyyy" D. "eeee d'th of' MMMM yyyy"

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Correct Answer: B Vote an answer

Question 8

Which code fragment compiles?

A. Option B B. Option A C. Option C D. Option D

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Correct Answer: D Vote an answer

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