1z0-809トレーニング費用 & 1z0-809再テスト1z0-809試験資料は試験に緊密に関連しています。あなた1z0-809試験資料を勉強したら、その資料のメリットを見つけることができます。1z0-809試験資料の問題の答えを覚えると、試験に合格する可能性が大きいです。使い安ク、便利で、全面的で、全部1z0-809試験資料の特徴です。だから、1z0-809試験資料は有難い商品です。 Oracle Java SE 8 Programmer II 認定 1z0-809 試験問題 (Q79-Q84):質問 # 79
Which two statements are true about the Fork/Join Framework? (Choose two.)
A. The Fork/Join framework can help you take advantage of multicore hardware.
B. The RecursiveTask subclass is used when a task does not need to return a result.
C. The Fork/Join solution when run on multicore hardware always performs faster than standard sequential solution.
D. The Fork/Join framework implements a work-stealing algorithm.
正解：B、D
解説：
References:
質問 # 80
Given the code fragment:
Stream<Path> files = Files.list(Paths.get(System.getProperty("user.home"))); files.forEach (fName -> {//line n1 try { Path aPath = fName.toAbsolutePath();//line n2 System.out.println(fName + ":"
+ Files.readAttributes(aPath, Basic.File.Attributes.class).creationTime ());
} catch (IOException ex) {
ex.printStackTrace();
});
What is the result?
A. The files in the home directory are listed along with their attributes.
B. All files and directories under the home directory are listed along with their attributes.
C. A compilation error occurs at line n2.
D. A compilation error occurs at line n1.
正解：A
質問 # 81
Given the code fragment:
What is the result?
A. A Work done
B. A B C D Work done
C. Compilation fails.
D. A B C Work done
正解：A
質問 # 82
Given:
and this code fragment:
What is the result?
A. Open-Close-Open-Close-
B. Open-Close-Open-
C. A compilation error occurs at line n1.
D. Open-Close-
Exception - 1
Open-Close-
正解：C
質問 # 83
Given the code fragment:
What is the result?
Word: why what when
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