Oracle 1Z0-805日本語 問題集

質問 1：

public class StringApp {
public static void main(String[] args) {
String[] str="Java SE,java EE,Java ME,java FX".split(",");
int count=0;
for(int i=0;i<str.length;i++) {
switch(str[i]) {
case "Java SE":
count++; continue;
case "Java EE":
count++; break;
case "Java ME":
count++; break;
case "Java FX":
count++; break;
}
}
System.out.println("Total match found="+count);
}
}

A. 2
B. 3
C. 4
D. 1
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 2：

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

質問 3：

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 4：

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;
Fibonacci f2 = new Fibonacci (n - 2);
return f2.compute() + f1.join; // Line **
}
}
Assume that line ** is replaced with:
return f1.join() + f2.compute(); // Line **

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

質問 5：



Finder() {
matcher = FileSystems.getDefault().getPathMatcher("glob:*java");
}
void find(Path file) {
Path Name = file.getFileName();
if (name != null && matcher.matches(name)) {
numMatches++;
}
}
void report()
{
System.out.println("Matched: " + numMatches);
}
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) {
find(file);
return CONTINUE;
}
}
public class Visitor {
public static void main(String[] args) throws IOException {
Finder finder = new Finder();
Files.walkFileTree(Paths.get("d:\\Project"), finder);
finder.report();
}
}

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

質問 6：

private static void copyContents (File source, File target) {
try {inputStream fis = new FileInputStream(source);
outputStream fos = new FileOutputStream (target);
byte [] buf = new byte [8192]; int i;
while ((i = fis.read(buf)) != -1) {
fos.write (buf, 0, i);
}
//insert code fragment here. Line **
System.out.println ("Successfully copied");
}

A. } catch (InvalidPathException | IOException e) {
System.out.println(e);
}
B. } catch (IOException | IndexOutOfBoundException e) {
System.out.println(e);
}
C. } catch (IOException | NoSuchFileException e) {
System.out.println(e);
}
D. } catch (Exception | IOException | FileNotFoundException e ) {
System.out.println(e);
}
E. } catch (NoSuchFileException e ) {
System.out.println(e);
}
正解：A,B,E
解説: (Topexam メンバーにのみ表示されます)

質問 7：

A. RuleSet
B. Statement
C. DriverManager
D. Date
E. Time
F. SQLException
G. Connection
正解：B,F,G
解説: (Topexam メンバーにのみ表示されます)