Discussion
Which of these statements about using an array as an element of a HashSet is correct?
Answer: D
An array inherits identity equality and an identity hash code, so two arrays are the same only when they are the same object. A set of arrays therefore almost never behaves as intended; a List, or a wrapper class with proper equals and hashCode, is what is wanted.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development