Oracle 1Z0-804 問題集

質問 1：
Given the following code fragment:
10.
p1 = paths.get("report.txt");
11.
p2 = paths.get("company");
12.
/ / insert code here
Which code fragment, when inserted independently at line 12, move the report.txt file to the company directory, at the same level, replacing the file if it already exists?
A. Files.move(p1, p2, StandardCopyOption.REPLACE_EXISTING, StandardCopyOption.copy_ATTRIBUTES,
StandrardCopyOp)
B. Files.move(p1, p2, StandardCopyOption.REPLACE_Existing, LinkOption.NOFOLLOW_LINKS);
C. Files.move(p1, p2, StandardCopyOption.REPLACE_EXISTING, StandardCopyOption.ATOMIC_MOVE);
D. Files.move(p1, p2, StandardCopyOption.REPLACE_EXISTING, LinkOption.NOFOLLOW_LINKS);
E. Files.move (p1, p2, StandardCopyOption.REPLACE_EXISTING, StandardCopyOption.copy_ATTRIBUTES,
LinkOption.NOF)
正解：C,D
解説: (Topexam メンバーにのみ表示されます)

質問 2：
Given:

What is the result?
A. onetwonull
B. onetwothree
C. twoonenull
D. An exception is thrown at runtime on line 9.
E. An exception is thrown at runtime on line 12
F. threetwoone
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 3：
Given the existing destination file, a source file only 1000 bytes long, and the code fragment:

What is the result?
A. Overrides the content of the destination file with the source file content
B. Throws a runtime exception at line***
C. Appends the content of the source file to the destination file without a break in the flow
D. Appends the content of the source file to the destination file after a new line
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 4：
Given:

What is the result?
A. Nice, see you, be fine
B. Nice to see you,be fine
C. Nice to see y, u, be fine
D. Nice,see you,be fine
E. Nice,see you, to, be fine
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 5：
Given:

What is the result?
A. class java.lang.Exception
B. class java.lang.NullPointerException
C. Compilation fails.
D. Null
E. class java.lang.ArraylndexOutOfBoundsException
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 6：
Given:

Which statement will iterate through Direction?
A. for (Direction d : Direction.asArray()){
//
}
B. for (Direction d : Direction.values()){
//
}
C. for (Direction d : Direction.iterator()){
//
}
D. for (Direction d : Direction.asList()){
//
}
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 7：
Given:

Which three values will appear in the output?
A. b1
B. b2
C. a2
D. a1
E. 7
F. 5
正解：A,C,F
解説: (Topexam メンバーにのみ表示されます)

質問 8：
Given:

What is the result?
A. Compilation fails
B. John Adams George Washington Thomas Jefferson
C. Thomas Jefferson John Adams George Washington
D. George Washington John Adams Thomas Jefferson
E. An exception is thrown at runtime
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 9：
The two methods of code reuse that aggregate the features located in multiple classes are ____________ ?
A. Refactoring
B. Inheritance
C. Copy and Paste
D. Virtual Method Invocation
E. Composition
正解：B,E
解説: (Topexam メンバーにのみ表示されます)