Oracle 1Z0-805日本語 問題集

質問 1：

A. Option A
B. Option C
C. Option D
D. Option B
正解：D

質問 2：

class Fibonacci extends RecursiveTask<Integer> {
final int n;
Fibonacci (int n) { this.n = n }
Integer compute () {
if (n <= 1)
return n;
Fibonacci f1 = new Fibonacci (n - 1);
f1.fork; // Line X
Fibonacci f2 = new Fibonacci (n - 2); // Line Y
return f2.compute() + f1.join;
}
}
Suppose that lines X and Y are transposed:
Fibonacci f2 = new Fibonacci (n - 2); // Line Y
f1.fork; // Line X

A. Option E
B. Option A
C. Option C
D. Option D
E. Option B
F. Option F
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 3：



A. Option A
B. Option C
C. Option D
D. Option B
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 4：

public static void main(String[] args) { Path dir = Paths.get("d:\\company");
// insert code here. Line **
for (Path entry: stream) {
System.out.println(entry.getFileName());
}
} catch (IOException e) {
System.err.println("Caught IOException: " + e.getMessage());
}
}

A. try (DirectoryStream<path> stream = Files.newDirectoryStream(dir, "*.{java*, htm*, jar*}"}} {
B. try (DirectoryStream<path> stream = Files.newDirectoryStream(dir, "*.{java, htm, jar}")) {
C. try (DirectoryStream<path> stream = Files.newDirectoryStream(dir, "**.{java, htm, jar}")) {
D. try (DirectoryStream<path> stream = Files.newDirectoryStream(dir, "*.[java, htm, jar"] }} {
正解：B,C
解説: (Topexam メンバーにのみ表示されます)

質問 5：

public static void getInfo() {
//insert code here
List fontCatalog = new ArrayList();
fontCatalog.add("Algerian");
fontCatalog.add("Cambria");
fontCatalog.add("Lucida Bright");
category.put("firstCategory",fontCatalog);
List entrySet = new ArrayList(category.entrySet());
Iterator it = entrySet.iterator();
while(it.hasNext()) {
System.out.println(it.next));
}
}

A. Map<String, List<String>> category = new HashMap <String, ArrayList<String>> ();
B. Map<String, List<String>> category = new HashMap<String, List <>> ();
C. Map<String, List<String>> category = new HashMap<String, List<String>> ();
D. Map<String, List<String>> category = new HashMap<<>,List<>>();
E. Map<String, List<String>> category = new HashMap<List> ();
F. Map<String, List<String>> category = new HashMap<> ();
正解：C,F
解説: (Topexam メンバーにのみ表示されます)

質問 6：

A. Option A
B. Option C
C. Option D
D. Option B
正解：C,D
解説: (Topexam メンバーにのみ表示されます)

質問 7：

written in US English.)
English US resource Bundle
Menu1 = small
French resource Bundle
Menu1 = petit
Chinese Resource Bundle
Menu = 1
And given the code fragment:
Locale.setDefault (new Locale("es", "ES")); // Set default to Spanish and Spain
loc1 = Locale.getDefault();
ResourceBundle messages = ResourceBundle.getBundle ("messageBundle", loc1);
System.out.println (messages.getString("menu1"));

A. Option E
B. Option A
C. Option C
D. Option D
E. Option B
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 8：

A. int i = new Random (). nextInt (100)+1;
B. int i = (int) Math.random()*.nextInt(1, 101);
C. int i = ThreadLocalRandom.current().nextInt (1, 101);
D. int i = ThreadSaferandom.current().nextInt(1, 101);
E. int i = (int) Match.random (1, 101);
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 9：

submit (Data) { if (Data.size < SMALL_ENOUGH) { _________(Data); // line X } else { List<Data> x = _________________(Data); // line Y for(Data d: x ______________(d); // line Z } }

Process, submit, and splitInHalf

A. Option E
B. Option A
C. Option C
D. Option D
E. Option B
F. Option F
G. Option G
正解：A,C,G
解説: (Topexam メンバーにのみ表示されます)