手に入れよう！は2025年最新の有効な実践問題であなたの1z1-819試験を合格させる（本日更新された297問) [Q110-Q127]

手に入れよう！は2025年最新の有効な実践問題であなたの1z1-819試験を合格させる（本日更新された297問)

Oracle Java SE 1z1-819試験実践テスト問題集解答豪華セットを使おう！

Oracle 1Z0-819：Java SE 11開発者認定試験は、Javaプログラミングでスキルと知識を実証したい専門家向けに設計された包括的なテストです。この試験に合格すると、Java開発者に多くの利点を提供できます。これには、改善された雇用展望、認定専門家のネットワーク、Java SE 11開発の最新の開発に最新の状態を保つのに役立つリソースへのアクセスが含まれます。この試験を受けることを希望する候補者は、慎重に準備し、利用可能な多くのリソースを活用する必要があります。

質問 # 110
Given:

Examine these requirements:
Eliminate code duplication.
Keep constant the number of methods other classes may implement from this interface.
Which method can be added to meet these requirements?

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

正解：D

質問 # 111
Given:

Which statement on line 1 is calling the method of the supplier object correctly?

A. System.out.printin(supplier.get() );
B. System.out.printin(supplier.accept() );
C. System.out.printin(supplier.apply() );
D. System.out.printin(supplier.test() );

正解：A

質問 # 112
Given:

Which code fragment on line 1 makes the m map contain the employee with the highest salary for each neighborhood?
A)

B)

C)

D)

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

正解：D

質問 # 113
Given:

Which two statements are valid to be written in this interface? (Choose two.)

A. public int x;
B. final void methodE();
C. private abstract void methodC();
D. public void methodF(){System.out.println("F");}
E. final void methodG(){System.out.println("G");}
F. public String methodD();
G. public abstract void methodB();

正解：F、G

質問 # 114
Given:

What is the result?
A)

B)

C)

D)

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

正解：B

質問 # 115
Given:

Examine these requirements:
* Eliminate code duplication.
* Keep constant the number of methods other classes may implement from this interface.
Which method can be added to meet these requirements?

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

正解：D

質問 # 116
Why does this compilation fail?

A. The method Y. print (object...) cannot override the final method x.print (object....).
B. In method x. print (Collection), system. Out :: prints is an invalid Java identifier.
C. The method x. print (object) is not accessible to Y.
D. The method print (object) and the method print (object...) are duplicates of each other.
E. The method Y. print (object) does not call the method super.print (object)

正解：D

質問 # 117
Given:

Assuming that this code compiles correctly, which three statements are true? (Choose three.)

A. B cannot be abstract.
B. B cannot be final.
C. B is a subtype of A.
D. A cannot be final.
E. A cannot be abstract.
F. A is a subtype of B.

正解：A、C、D

質問 # 118
Given:
var fruits = List.of("apple", "orange", "banana", "lemon");
You want to examine the first element that contains the character n. Which statement will accomplish this?

A. Optional<String> result = fruits.stream().filter(f -> f.contains ("n")).findFirst ();
B. String result = fruits.stream().filter(f -> f.contains("n")).findAny();
C. fruits.stream().filter(f -> f.contains("n")).forEachOrdered(System.out::print);
D. Optional<String> result = fruits.stream().anyMatch(f -> f.contains("n"));

正解：C

解説：

質問 # 119
Given:

After which line can we insert assert i < 0 || values[i] <= values[i + 1]; to verify that the values array is partially sorted?

A. after line 5
B. after line 6
C. after line 10
D. after line 8

正解：B

解説：

質問 # 120
Given:

What is true?

A. This should print the same result each time the program runs.
B. A NoSuchElementExceptionis thrown at run time.
C. The compilation fails.
D. This may not print the same result each time the program runs.

正解：D

解説：

質問 # 121
Which two modules include APIs in the Java SE Specification? (Choose two.)

A. jdk.httpserver
B. jdk.jartool
C. java.logging
D. java.desktop
E. javafx

正解：A、C

質問 # 122
Given:

What is the result?

A. 0
B. 1
C. An exception is thrown at runtime.
D. 2

正解：B

解説：

質問 # 123
Given this requirement:
Module vehicle depends on module part and makes its com.vehicle package available for all other modules.
Which module-info.java declaration meets the requirement?

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

正解：B

質問 # 124
Given this enum declaration:

Examine this code:
System.out.println(Alphabet.getFirstLetter());
What code should be written at line 3 to make this code print A?

A. static String getFirstLetter() { return A.toString(); }
B. final String getFirstLetter() { return A.toString(); }
C. String getFirstLetter() { return A.toString(); }
D. static String getFirstLetter() { return Alphabet.values()[1].toString(); }

正解：A

質問 # 125
Given the code fragment:

What is the result?

A. 2 4 6 B 10
B. 2 4 6 8
C. 13 5 7 9
D. 1 3 5 7 9 11

正解：D

質問 # 126
Given:

What is the result?

A. java.lang.ArrayIndexOutOfBoundsException thrown
B. [0,0] = Red[1,0] = Black[2,0] = Blue
C. [0,0] = Red[0,1] = White[1,0] = Black[2,0] = Blue[2,1] = Yellow[2,2] = Green[2,3] = Violet
D. [0,0] = Red[0,1] = White[1,0] = Black[1,1] = Blue[2,0] = Yellow[2,1] = Green[3,0] = Violet

正解：C

解説：