あなたを合格させる1Z0-819お手軽に試験合格リアル1Z0-819練習問題集で更新されたのは2023年12月14日 [Q61-Q76]

あなたを合格させる1Z0-819お手軽に試験合格リアル1Z0-819練習問題集で更新されたのは2023年12月14日

2023年最新の実際に出ると確認されたで無料Oracle 1Z0-819試験問題

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 # 61
Given:

And the command:
java Main Helloworld
What is the result ?

A. A NullPointerException is thrown at run time.
B. Input: Echo: Helloworld
C. Input: Helloworld Echo: Helloworld
D. Input: Then block until any input comes from System.in.
E. Input: Echo:

正解：D

解説：

質問 # 62
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 8
B. after line 10
C. after line 5
D. after line 6

正解：D

解説：

質問 # 63
Which command line runs the main class com.acme.Main from the module com.example?

A. java -classpath com.example.jar com.acme.Main
B. java --module-path mods -m com.example/com.acme.Main
C. java --module-path mods com.example/com.acme.Main
D. java -classpath com.example.jar -m com.example/com.acme.Main

正解：D

質問 # 64
Given:

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

A. nothing
B. The compilation fails.
C. 1) one
D. A java.lang.ArrayIndexOutOfBoundsException is thrown.
E. 1) one2) two3) three

正解：E

質問 # 65
Given the code fragment:
public void foo(Function<Integer, String> fun) {...}
Which two compile? (Choose two.)

A. foo( n -> n + 1 )
B. foo( int n -> Integer.toHexString(n) )
C. foo( n -> Integer.toHexString(n) )
D. foo( (int n) -> Integer.toHexString(n) )
E. foo( n::toHexString )
F. foo( n -> Integer::toHexString )
G. foo( Integer::toHexString )
H. foo( toHexString )

正解：A、C

解説：
Explanation/Reference:

質問 # 66
Examine these module declarations:

Which two statements are correct? (Choose two.)

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

正解：B、E

質問 # 67
Given:

What is the result?

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

正解：C

解説：

質問 # 68
Given:

Which statement is true about the Fox class?

A. The inhabit method implementation from the first interface that Fox implements will take precedence.
B. Fox class must provide implementation for the inhabit method.
C. Fox class does not have to override the inhabit method if Forest and Town provide compatible implementations.
D. Fox class does not have to override inhabit method, so long as it does not try to call it.
E. Fox class must implement either Forest or Town interfaces, but not both.

正解：C

質問 # 69
Given:

Which two constructors will compile and set the class field strings? (Choose two.)

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

正解：A、D

質問 # 70
Examine these module declarations:

Which two statements are correct? (Choose two.)

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

正解：B、E

解説：
com.example.api API.

質問 # 71
Given the content from the course.txt file:

Which code fragment at line 1 prints the lines that contain Java from the course.txt file?