1z1-808問題集、Oracle実際の試験問題

質問 1

Given the code fragment:

And given the requirements:
- If the value of the qty variable is greater than or equal to 90,
discount = 0.5
- If the value of the qty variable is between 80 and 90, discount = 0.2 Which two code fragments can be independently placed at line n1 to meet the requirements?

A. Option A

B. Option C

C. Option E

D. Option B

E. Option D

正解: A,B

質問 2

Given:

What is the result?

A. false:false

B. true:false

C. true:true

D. false:true

正解: D

質問 3

Given the code fragment:

Which modification enables the code fragment to print TrueDone?

A. At line 9, remove the break statement.

B. Replace line 5 With String result = "true";
Replace line 7 with case "true":

C. Remove the default section.

D. Replace line 5 with boolean opt = l;
Replace line 7 with case 1=

正解: B

解説: (PassTest メンバーにのみ表示されます)

質問 4

Given:

and the code fragment:

What is the result?

A. true:false:true

B. true:true:false

C. false:true:false

D. false:true:true

正解: D

質問 5

Given the code fragment:
for (int ii = 0; ii < 3;ii++) {
int count = 0;
for (int jj = 3; jj > 0; jj--) {
if (ii == jj) {
++count;
break;
}
}
System.out.print(count);
continue;
}
What is the result?

A. 012

B. 011

C. 000

D. 123

正解: B

質問 6

Which statement best describes encapsulation?

A. Encapsulation ensures that classes can be designed with some fields and methods declared as abstract.

B. Encapsulation ensures that classes can be designed so that if a method has an argument MyType x, any subclass of MyType can be passed to that method.

C. Encapsulation ensures that classes can be designed so that only certain fields and methods of an object are accessible from other objects.

D. Encapsulation ensures that classes can be designed so that their methods are inheritable.

正解: C

解説: (PassTest メンバーにのみ表示されます)

質問 7

Given:

What is the result?

A. 120D

B. Compilation fails due to error at line 5.

C. Compilation tails due to error at line 8.

D. A NumberFormatException will be thrown.

E. 120

正解: C

解説: (PassTest メンバーにのみ表示されます)

質問 8

Given:

What is the result?

A.

B.

C.

D.

正解: C

解説: (PassTest メンバーにのみ表示されます)

質問 9

Given:

The class is poorly encapsulated.
You need to change the circle class to compute and return the area instead.
Which three modifications are necessary to ensure that the class is being properly encapsulated?
(Choose 3)

A. Remove the area field.

B. Change the getArea () method public double getArea () { return area; }

C. When the radius is set in the Circle constructor and the setRadius () method, recomputed the area and store it into the area field

D. Change the getRadius () method: public double getRadius () { area = Math.PI * radius * radius; return radius; }

正解: A,B,C

質問 10

A method is declared to take three arguments.
A program calls this method and passes only two arguments.
What is the results?

A. Compilation fails.

B. The third argument is given the value void.

C. The third argument is given the appropriate falsy value for its declared type.

D. The third argument is given the value null.

E. An exception occurs when the method attempts to access the third argument.

F. The third argument is given the value zero.

正解: A

質問 11

Given the code fragment:

What is the result?

A. May 04, 2014T00:00:00.000

B. 5/4/14T00:00:00.000

C. 2014-05-04T00:00: 00. 000

D. An exception is thrown at runtime.

正解: D

解説: (PassTest メンバーにのみ表示されます)

質問 12

Given:
public class String1 {
public static void main(String[] args) {
String s = "123";
if (s.length() >2)
s.concat("456");
for(int x = 0; x <3; x++)
s += "x";
System.out.println(s);
}
}
What is the result?

A. 123xxx

B. 123456

C. 123

D. Compilation fails

E. 123456xxx

正解: A

解説: (PassTest メンバーにのみ表示されます)

質問 13

Given: