2023최신 1Z0-819연습문제 및 덤프&팁 [Q20-Q42]의 예제와 연습문제

질문 20
주어진:

결과는 어떻게 되나요?

질문 21
Given the Person class with age and name along with getter and setter methods, and this code fragment:

What will be the result?

질문 22
Which two are functional interfaces? (Choose two.)

질문 23
Which module-info.java is correct for a service provider for a print service defined in the PrintServiceAPI module?

질문 24
주어진:

결과는 어떻게 되나요?

질문 25
주어진:

결과는 어떻게 되나요?

질문 26
Which two modules include APIs in the Java SE Specification? (Choose two.)

질문 27
Your organization makes mlib.jar available to your cloud customers. While working on a code cleanup project for mlib.jar, you see this method by customers:

What security measures should be added to this method so that it meets the requirements for a customer accessible method?

질문 28
주어진:

결과는 어떻게 되나요?

질문 29
주어진:

A) An exception is thrown at run time.
B)

C) The compilation fails due to an error on line 2.
D) The compilation fails due to an error on line 1.
E)

F)
The compilation fails due to an error on line 3.

질문 30
주어진:
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);
결과는 어떻게 되나요?

질문 31
주어진:

결과는 어떻게 되나요?

질문 32
Given an application with a main module that has this module-info.java file:

다음 중 어느 것이 사실인가요? (두 개를 선택하세요.)

질문 33
주어진:

Which two method implementations are correct, when inserted independently in line 1? (Choose two.)

질문 34
Given the declaration:

Which two annotations may be applied at Loc1 in the code fragment? (Choose two.)

질문 35
주어진:

잠재적인 서비스 거부 상태로부터 이 코드를 보호하는 방법은 무엇인가요?

질문 36
코드 조각이 주어집니다:

You want to examine whether path is a directory.
Which code inserted on line 1 will accomplish this?

질문 37
코드 조각이 주어집니다:

결과는 어떻게 되나요?

질문 38
주어진:

결과는 어떻게 되나요?

질문 39
Given the Customer table structure:
* ID Number Primary Key
* NAME Text Nullable
Given code fragment:

Which statement inserted on line 14 sets NAME column to a NULL value?

질문 40
주어진:

You wants to make the reduction operation parallelized.
Which two modifications will accomplish this?

질문 41
주어진:

executed with this command:
java Main one two three
What is the output of this class?

질문 42
주어진:

결과는 어떻게 되나요?