1Z0-853 Real Exam Dumps DEMO

Question 20: }
What is the result?
A. Cannot add Toppings
B. Compilation fails.
C. The code runs with no output.
D. A NullPointerException is thrown in Line 4.
Correct Answer: B
4. Which three statements are true? (Choose three.)
A. A protected method in class X can be overridden by any subclass of X.
B. A final method in class X can be abstract if and only if X is abstract.
C. A private static method can be called only within other static methods in class X.
D. A non-static public final method in class X can be overridden in any subclass of X.
E. A method with the same signature as a private final method in class X can be implemented in a
subclass of X.
F. A protected method in class X can be overridden by a subclass of A only if the subclass is in the
same package as X.
G. A public static method in class X can be called by a subclass of X without explicitly referencing the
class X.
Correct Answer: A,E,G
5. DRAG DROP
Click the Task button.
Correct Answer:
6. Which two statements are true about has-a and is-a relationships? (Choose two.)
A. Interfaces must be used when creating a has-a relationship.
B. Instance variables can be used when creating a has-a relationship.
C. Inheritance represents an is-a relationship.
D. Inheritance represents a has-a relationship.
Correct Answer: B,C
7. Given:
10.class One {
11.void foo() { }
12.}
13.class Two extends One {
14.//insert method here
15.}
Which three methods, inserted individually at line 14, will correctly complete class Two? (Choose
three.)
A. public void foo() { /* more code here */ }
B. private void foo() { /* more code here */ }
C. protected void foo() { /* more code here */ }
D. int foo() { /* more code here */ }
E. void foo() { /* more code here */ }
Correct Answer: A,C,E
8. Given:
55.int [] x = {1, 2, 3, 4, 5};
56.int y[] = x;
57.System.out.println(y[2]); Which statement is true?
A. Compilation will fail because of an error in line 55.
B. Line 57 will print the value 2.
C. Compilation will fail because of an error in line 56.
D. Line 57 will print the value 3.
Correct Answer: D
9. Click the Exhibit button.
Which two statements are true if this class is compiled and run? (Choose two.)
A. The code may run with no output, exiting normally.
B. The code may run with output "A A A B C A B C C ", then exit.
C. The code may run with output "A B A B C C ", then exit.
D. An exception may be thrown at runtime.
E. The code may run with no output, without exiting.
F. The code may run with output "A B C A B C A B C ", then exit.
G. The code may run with output "A B C A A B C A B C ", then exit.
Correct Answer: F,G
10. Given:
10.public class SuperCalc {
11.protected static int multiply(int a, int b) { return a * b;}
12.} and:
20.public class SubCalc extends SuperCalc{
21.public static int multiply(int a, int b) {
22.int c = super.multiply(a, b);
23.return c;
24.}
25.} and:
30.SubCalc sc = new SubCalc ();
31.System.out.println(sc.multiply(3,4));
32.System.out.println(SubCalc.multiply(2,2));
What is the result?
A. The code runs with no output.
B. 12 4
C. Compilation fails because of an error in line 31.
D. Compilation fails because of an error in line 21.
E. An exception is thrown at runtime.
F. Compilation fails because of an error in line 22.
Correct Answer: F
11. A programmer has an algorithm that requires a java.util.List that provides an efficient
implementation of add(0, object), but does NOT need to support quick random access.
What supports these requirements?
A. java.util.ArrayList
B. java.util.Queue
C. java.util.LinearList
D. java.util.LinkedList
Correct Answer: D
12. Which two statements are true about the hashCode method? (Choose two.)
A. The hashCode method for a given class can be used to test for object equality and object inequality
for that class.
B. The hashCode method is used by the java.util.HashSet collection class to group the elements
within that set into hash buckets for swift retrieval.
C. The only important characteristic of the values returned by a hashCode method is that the
distribution of values must follow a Gaussian distribution.
D. The hashCode method is used by the java.util.SortedSet collection class to order the elements
within that set.
E. The hashCode method for a given class can be used to test for object inequality, but NOT object
equality, for that class.
Correct Answer: B,E
13. Given:
11.double input = 314159.26;
12.NumberFormat nf = NumberFormat.getInstance(Locale.ITALIAN);
13.String b;
14.//insert code here
Which code, inserted at line 14, sets the value of b to 314.159,26?
A. b = nf.parseObject( input );
B. b = nf.parse( input );
C. b = nf.format( input );
D. b = nf.equals( input );
Correct Answer: C
14. Given:
10.class One {
11.public One() { System.out.print(1); }
12.}
13.class Two extends One {
14.public Two() { System.out.print(2); }
15.}