Discussion
Which of these correctly declares a queue that blocks when empty?
Answer: C
Correct answer: BlockingQueue<Job> q = new LinkedBlockingQueue<Job>();
BlockingQueue is an interface, so it cannot be instantiated; LinkedBlockingQueue and ArrayBlockingQueue are the usual implementations. A LinkedList would compile as a plain Queue but would return null on an empty queue rather than blocking.
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