Programming - Collection Of Frameworks
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| 19. |
_________________________ is relevant from the context of iterators.
|
| A. |
Fail-Fast |
B.
|
fail |
|
C.
|
fast
|
D.
|
None of these
|
|
Answer: Option A
Explanation:
| Fail-fast is relevant from the context of iterators. |
|
| 20. |
________________________ classes are implemented using dynamically resizable arrays
|
| A. |
Vector |
B.
|
ArrayList |
|
C.
|
Both A and B
|
D.
|
None of these
|
|
Answer: Option C
Explanation:
| Vector & ArrayList both classes are implemented using dynamically resizable arrays |
|
| 21. |
______________________ classes both implement the List interface.
|
| A. |
Vector |
B.
|
ArrayList |
|
C.
|
Both A and B
|
D.
|
None of these
|
|
Answer: Option C
Explanation:
| ArrayList and Vector class both implement the List interface. |
|
| 22. |
___________________ has no default size while vector has a default size of 10.
|
| A. |
Vector |
B.
|
ArrayList |
|
C.
|
Both A and B
|
D.
|
None of these
|
|
Answer: Option B
Explanation:
| ArrayList has no default size while vector has a default size of 10. |
|
| 23. |
Enumeration and Iterator are the interface available in ______________ package.
|
| A. |
java.io |
B.
|
java.util |
|
C.
|
java.sql
|
D.
|
java.lang
|
|
Answer: Option B
Explanation:
| Enumeration and Iterator are the interface available in java.util package. |
|
| 24. |
The functionality of ____________________ interface is duplicated by the Iterator interface.
|
| A. |
Enumeration |
B.
|
Iterator |
|
C.
|
Vector
|
D.
|
ArrayList
|
|
Answer: Option A
Explanation:
| The functionality of Enumeration interface is duplicated by the Iterator interface. |
|
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